-
1 mandrel method
- mandrel method
- n
Англо-русский строительный словарь. — М.: Русский Язык. С.Н.Корчемкина, С.К.Кашкина, С.В.Курбатова. 1995.
Англо-русский словарь строительных терминов > mandrel method
-
2 mandrel method
1) Строительство: метод устройства песчаных свай с использованием обсадных труб2) Полимеры: дорновый способ -
3 mandrel method
-
4 method
- method
- nметод, способ; система; порядок; методика; технология
- method of analysis
- method of application
- method of attack
- method of bearing and distances
- method of bipolar coordinates
- method of calculation
- method of design
- method of detail survey
- method of elastic weights
- method of electric needles
- method of expansion into series
- method of fixed points
- method of intersection
- method of joint isolation
- method of least work
- methods of manufacture
- method of minimum strain energy
- method of moment distribution
- method of radiation
- method of redistribution of pressure
- method of sections
- method of steam jet
- methods of structural analysis
- method of successive approximations
- methods of testing
- method of water needles
- accepted method of building
- accepted method of house construction
- accurate method of analysis
- adhesive nail-on method
- admittance method
- advanced methods of concreting
- advance slope method
- aggregate exposure method
- air permeability method
- alternate methods
- American method
- analytical method of determining reactions
- API method of pile design
- approximate method
- approximation method
- area method
- area-moment method
- assembly methods
- Austrian method
- autogenous curing method
- balanced cantilever method
- Belgian method
- Benoto method
- bentonite method
- Billner method
- "bin" method
- boiling water method
- boom placement concreting method
- bricklaying methods
- building method
- building block module method
- cable method of rock stressing
- calculation method
- cantilever method
- Chicago method
- circular-arc method
- Coast-Survey method
- collapse method of structural design
- combined finite strip-finite element method
- compaction methods of clays
- conjugate beam method
- consistency measurement method
- construction methods
- construction and erection methods
- contiguous pile method
- continuous-flight augers method
- continuous-sample method of advance
- convergence method
- critical method
- critical path method
- Cross moment distribution method
- Cross method
- cross-section method
- current design methods
- cut-and-cover method
- dampproofing methods
- displacement method
- displacement method of advance
- dual-rail method
- dummy unit-load method
- dust-spot method
- Dutch cone method
- earth pressure balanced tunneling method
- elastic center method
- elastic weights method
- electric analogy method
- electric resisting method
- energy method
- equal friction method of duct sizing
- equal friction method
- equivalent load method
- erection method
- fast track construction methods
- fatigue test method
- finite difference method
- finite element method
- finite strip method
- flight auger method
- flotation caisson method
- flue loss method
- folded plate method of analysis
- force method
- free cantilever method of construction
- general method of analysis
- Glotzl hydraulic cell method
- Gow method
- Hardy Cross method
- housing appraisal method
- in-duct method
- industrialized methods of construction
- iterative method
- jack method
- jacking method
- lacquer curtain coating method
- laser beam method
- leap-frog method
- limit equilibrium method
- limit state method
- listening methods
- load factor design method
- mandrel method
- mathematical method of design
- matrix method of structural analysis
- maturity method
- measuring method
- mixed-mode method
- mix-in-place method
- modern building methods
- modular ratio method
- moiré fringe method
- moment-balance method
- nondestructive methods of tests
- normal method of quality control
- null method
- numerical method
- one-rail method
- optical square method
- permissible stress method
- phototheodolite method
- plastic methods of structural analysis
- plate count method
- precast concrete manufacturing methods
- pressuremeter method
- proven construction methods
- p-y method of pile design
- rapid test method
- ratio method of balancing
- rebound hammer method
- reference point method
- relaxation method
- reproducible methods
- resistivity method
- resonant-frequency method
- reverberant field method
- Rockwell method of hardness testing
- safe method
- safe working methods
- secant interlocking pile method
- secant pile method
- seismic method of surveying
- seismic reflection method
- seismic refraction method
- semiprobabilistic design method
- shear transfer method
- shock response method of pile testing
- sliding-wedge method
- slope deflection method
- solar radiation method
- sonic method
- special method of quality control
- standard test method
- static regain method of duct sizing
- static regain method
- statistical design method
- step-by-step method
- strength design method
- strength evaluation method
- successive approximations method
- suspended cantilever method
- swamp shooting method
- Tagg method
- tangent modulus method
- test methods
- Theis method
- thixotropic liquid method
- three-point method
- tilt-up method
- time-saving method of construction
- TNO method of analysis
- TNO method of pile testing
- transit and stadia method
- tremie method
- truss analogy method
- turn-of-nut method
- ultrasonic pulse velocity method
- vacuum concrete method of bridge construction
- valveless pulse-jet method
- vane shear method
- velocity reduction method of duct sizing
- velocity reduction method
- vibratory method
- Vickers method of hardness testing
- volume method of measuring aggregates
- warm water method
- water fog spray method
- western bricklaying method
- western method
- working-stress design method
Англо-русский строительный словарь. — М.: Русский Язык. С.Н.Корчемкина, С.К.Кашкина, С.В.Курбатова. 1995.
-
5 method
1) метод; способ; средство2) система; порядок3) технология4) методика•- method of applying liquid lubrication - method of calculation - method of column analogy - method of comparison - method of connecting - method of determining bending moments by fixed points - method of directions - method of elastic arch - method of elastic weights - method of electric needles - method of exchange of members - method of firing - method of fixed points - method of images - method of initial parameters - method of joints - method of least squares - method of least work - method of limit equilibrium - method of minimum strain energy - method of moments - method of movement - method of operation - method of payment - method of planning - method of production - method of redundant reactions - method of rotations - method of sections - method of separate joint displacement - method of slopes - method of stowage - method of strain measurement method - method of substitute redundant members - method of successive approximations - method of successive corrections - method of training - method of transportation - method of working - method of zero moment points - methods of network planning and control - ad hoc method - advertising method - aero-projection method - air-permeability method - airslide method - approximation method - arbitrary proportions method - area moment method - artificial islands method - ball method of testing - bench method - bidding methods - brush method of treatment timber - building methods - caisson method - cantilever method of design - cassette method of production of thin-slab structures - central mixing method - centre drift method - centrifuge method - centroidal method of design - change-in-stress method - chemical injection method - closed building method - column analogy method of design - compressed-air method of tunnelling - concrete testing method - cone method - construction works quality control method - core-drill method - correlation method - cut-and-cover method - cut-and-try method - cylinder method - deflection method - design methods - development method - dip method - dipping method of treatment timber - effective method - electrolytic method - emulsified-asphalt penetration method - energy method - equal load increments method - equal strain method - error method - fabrication method - fixing method - float and chains method - flow-line conveyer method - force method - graphical method - heading method of tunnelling - hot-air heating standpipe method - hot penetration method - hydraulic fill method - impact method - kinematic method - lacquer film method - land-assembly methods - lift-slab method - limit equilibrium method - limit stage design method - line production method - loading method - magnaflux method - mechanical method by pumps - membrane method of waterproofing - mixed-in-place method - mock-up methods of design - modular ratio method - moire fringe method - moment area method - moment-distribution method - moment-of-inertia method of designing - mud-jack method - mulch method - near end moment distribution method - neutral-points method - non-destructive testing methods - normal method - packing methods - patented method of construction - penetration method - percussive pneumatic method of riveting - photo-elastic method of stress-determination - photo-elasticity method - pilot method - pilot tunnel method - pin-and-string method - pipe-bridge method - plastic method of design - plastic theory method - polarized light method - portal method of design - pounding method of curing concrete - production line method of construction - qualitative methods - quantitative methods - relaxation method - ring-and-ball method - rolled-on method - safe method of heat insulation - safety methods - sampling method - sand-bearing method of testing clay pipes - sand-island method - scheduling method - seismic method of prospecting - simultaneous construction method - slope deflection method - spatial self-fixation erection method - statistical analysis method - stovepipe pipe-laying method - strain-energy method - successive construction method - surface-coating method of waterproofing - synthetic method of restoration - thixotropic liquid method - tilt-up method - top-heading method - transfiguration method - trial-load method - turnover method - ultimate-strength method - ultrasonic pulse velocity method - void method of proportioning - volume method of concrete mix design - volumetric method - water-jet method of pile-driving - weight method - well-point method of excavation - work method - working stress method of design* * *метод, способ; система; порядок; методика; технология- method of analysis
- method of application
- method of attack
- method of bearing and distances
- method of bipolar coordinates
- method of calculation
- method of design
- method of detail survey
- method of elastic weights
- method of electric needles
- method of expansion into series
- method of fixed points
- method of intersection
- method of joint isolation
- method of least work
- methods of manufacture
- method of minimum strain energy
- method of moment distribution
- method of radiation
- method of redistribution of pressure
- method of sections
- method of steam jet
- methods of structural analysis
- method of successive approximations
- methods of testing
- method of water needles
- accepted method of building
- accepted method of house construction
- accurate method of analysis
- adhesive nail-on method
- admittance method
- advanced methods of concreting
- advance slope method
- aggregate exposure method
- air permeability method
- alternate methods
- American method
- analytical method of determining reactions
- API method of pile design
- approximate method
- approximation method
- area method
- area-moment method
- assembly methods
- Austrian method
- autogenous curing method
- balanced cantilever method
- Belgian method
- Benoto method
- bentonite method
- Billner method
- "bin" method
- boiling water method
- boom placement concreting method
- bricklaying methods
- building method
- building block module method
- cable method of rock stressing
- calculation method
- cantilever method
- Chicago method
- circular-arc method
- Coast-Survey method
- collapse method of structural design
- combined finite strip-finite element method
- compaction methods of clays
- conjugate beam method
- consistency measurement method
- construction methods
- construction and erection methods
- contiguous pile method
- continuous-flight augers method
- continuous-sample method of advance
- convergence method
- critical method
- critical path method
- Cross moment distribution method
- Cross method
- cross-section method
- current design methods
- cut-and-cover method
- dampproofing methods
- displacement method
- displacement method of advance
- dual-rail method
- dummy unit-load method
- dust-spot method
- Dutch cone method
- earth pressure balanced tunneling method
- elastic center method
- elastic weights method
- electric analogy method
- electric resisting method
- energy method
- equal friction method of duct sizing
- equal friction method
- equivalent load method
- erection method
- fast track construction methods
- fatigue test method
- finite difference method
- finite element method
- finite strip method
- flight auger method
- flotation caisson method
- flue loss method
- folded plate method of analysis
- force method
- free cantilever method of construction
- general method of analysis
- Glotzl hydraulic cell method
- Gow method
- Hardy Cross method
- housing appraisal method
- in-duct method
- industrialized methods of construction
- iterative method
- jack method
- jacking method
- lacquer curtain coating method
- laser beam method
- leap-frog method
- limit equilibrium method
- limit state method
- listening methods
- load factor design method
- mandrel method
- mathematical method of design
- matrix method of structural analysis
- maturity method
- measuring method
- mixed-mode method
- mix-in-place method
- modern building methods
- modular ratio method
- moiré fringe method
- moment-balance method
- nondestructive methods of tests
- normal method of quality control
- null method
- numerical method
- one-rail method
- optical square method
- permissible stress method
- phototheodolite method
- plastic methods of structural analysis
- plate count method
- precast concrete manufacturing methods
- pressuremeter method
- proven construction methods
- p-y method of pile design
- rapid test method
- ratio method of balancing
- rebound hammer method
- reference point method
- relaxation method
- reproducible methods
- resistivity method
- resonant-frequency method
- reverberant field method
- Rockwell method of hardness testing
- safe method
- safe working methods
- secant interlocking pile method
- secant pile method
- seismic method of surveying
- seismic reflection method
- seismic refraction method
- semiprobabilistic design method
- shear transfer method
- shock response method of pile testing
- sliding-wedge method
- slope deflection method
- solar radiation method
- sonic method
- special method of quality control
- standard test method
- static regain method of duct sizing
- static regain method
- statistical design method
- step-by-step method
- strength design method
- strength evaluation method
- successive approximations method
- suspended cantilever method
- swamp shooting method
- Tagg method
- tangent modulus method
- test methods
- Theis method
- thixotropic liquid method
- three-point method
- tilt-up method
- time-saving method of construction
- TNO method of analysis
- TNO method of pile testing
- transit and stadia method
- tremie method
- truss analogy method
- turn-of-nut method
- ultrasonic pulse velocity method
- vacuum concrete method of bridge construction
- valveless pulse-jet method
- vane shear method
- velocity reduction method of duct sizing
- velocity reduction method
- vibratory method
- Vickers method of hardness testing
- volume method of measuring aggregates
- warm water method
- water fog spray method
- western bricklaying method
- western method
- working-stress design method -
6 mandrel extrusion method
English-Russian big polytechnic dictionary > mandrel extrusion method
-
7 mandrel extrusion method
Англо-русский металлургический словарь > mandrel extrusion method
-
8 mandrel extrusion method
Металлургия: способ прессования труб с иглойУниверсальный англо-русский словарь > mandrel extrusion method
-
9 roll mandrel
pounch holding mandrel — оправка — держатель для пакетов
-
10 detachable bell mandrel
English-Russian big polytechnic dictionary > detachable bell mandrel
-
11 floating mandrel
English-Russian big polytechnic dictionary > floating mandrel
-
12 piercing stub mandrel
English-Russian big polytechnic dictionary > piercing stub mandrel
-
13 дорновый способ
Polymers: mandrel method -
14 метод устройства песчаных свай с использованием обсадных труб
Construction: mandrel methodУниверсальный русско-английский словарь > метод устройства песчаных свай с использованием обсадных труб
-
15 способ прессования труб с иглой
Русско-английский новый политехнический словарь > способ прессования труб с иглой
-
16 плавающая игла
Русско-английский новый политехнический словарь > плавающая игла
-
17 закрепленная игла
Русско-английский новый политехнический словарь > закрепленная игла
-
18 конически ступенчат игла
Русско-английский новый политехнический словарь > конически ступенчат игла
-
19 оправка для прокатки труб
Русско-английский новый политехнический словарь > оправка для прокатки труб
-
20 проверка
check (снк), test, inspection
- (раздел рэ) — adjustment/test
-, автономная (инерц. сист.) — self-testing
-, безвыборочная — random check
- биения (радиального) — check for /of/ eccentricity
- биения (скоса боковой поверхности, напр., колеса турбины) — check of swash. checking the swash of turbine wheel.
- введенных координат гпм — waypoint coordinate insertion /entry/ verification
- включения (работы) системы — system operational test
-, внерегламентная — unschedule maintenance check
проверки или осмотры самолета, его систем и агрегатов, проводимые в результате нарушения нормальных условий эксплуатации, независимо от утвержденных сроков проверок, производятся после грубых посадок, в случае удара молний в самолет, посадки с избыточным весом, столкновения с птицей и др. — those maintenance checks and inspection on the aircraft, its systems and units which are dictated by special or unusual conditions which are not related to the time limits. includes inspections and checks such as hard landing, turbulent air, lightning strike, overweight landing, bird strike
- встроенным контролем — built-in test
test the system by using its built-in test facility /ieature/.
-, выборочная — spot check, sampling inspection
-, выборочная (на работоспособность) — spot test
- гермокабины на герметичность — pressurized cabin leakage test
- готовности (ла) к полету — pre-flight check
"- заправки топливом" — fuel oty test (switch) (выключатель)
-, комплексная (систем) — combined systems checkout
-, контрольная — inspection check
- концентричности (колеса турбины, вала) — check of concentricity (of turbine wheel, shaft)
- координат места ла — aircraft position coordinate verification
- ламп — lamp test
- ламп табло (повторным включением) — annunciator lights recall. any reset annunciator lights can be recalled using the warning, caution and advisory lights test switch.
- межпопетная (перед обратным маршрутом) — turnround check
- методом "прокачек" (функциональная проверка электр. цепей) — functional test
- на выявление трещин (одним из объективных методов дефектоскопии) — inspection for cracks (by emplaying an objective method of inspection)
- на герметичность — leak test
-, наземная — ground check
-, наземная (с опробованием) — ground test
- на нспопнитепьном старте — lne-up check
- на магнитном дефектоскопе (на выявление трещин) — magnetic inspection (for cracks)
- на месте (без демонтажа изделия или агрегата с объекта) — in-situ check /test, inspection/. the on-condition check is normally an in-situ test.
- на оправке — check on mandrel
- на правильность формы и взаимного расположения поверхностей (детали) — test for truth
сюда относятся проверки на (не)плоскостность, (не)перпендикулярность, (не)параллельность, овальность и на правильность совмещения отверстий. — the methods for testing for form and alignment are used to check the flatness, squareness, angular relationship or parallelism of the part surfaces, the alignment of holes or the true circularity of round parts.
- на пробой изоляции — insulation breakdown test
- на работоспособность (для подтверждения нормальной работы изделия) — operational test. the procedure required to ascertain only that a system or unit is operable.
- на работоспособность (для подтверждения эксплуатационных характеристик) — operation test. то demonstrate the engine operational characteristics.
- (реакции двигателя) на сброс газа — deceleration test
- на слух — listening test
перебои в работе двигателя могут определяться проверкой на слух, — listening test is employed to determine the engine rough operation.
- на соответствие техническим условиям — functional test
проверка, проводимая с целью подтверждения, что система или агрегат работает в соответствии с минимально допустимыми ту. — the procedure required to ascertain that а system or unit is functioning in all aspects in accordance with minimum acceptable design specifications.
- на стоянке — ramp check /test, inspection/
simple test module provides rapid ramp check.
- на утечку (герметичность) — leak-test
- на утечку мыльной пеной — leak-test with soap suds арplied
coat the pipe with soap suds to detect leakage.
- наличия электрической цепи от...до... — check of electrical circuit between...and...for continuity
- нивелировки (заклинения) неподвижных поверхностей самолета — check of rigging of fixed surfaces
- огнетушителей (без разряда) — fire extinguisher test (firex
нажать кнопку проверка огнетушителей и в этом случае должны загораться лампы 1-я очередь и 2-я очередь срабатывания. — press the firex test button and all main and altn lights illuminate on fire extinguisher test panel.
-, перекрестная (напр., всех аналогичных приборов) — crosscheck (хснеск) crosscheck the three altimeters.
-, периодическая — periodic check
- пиропатронов (противопожарной системы) — squib test. repeat procedure with squib test switch in aft position.
- плоскостности детали на контрольной плите — check for flatness of a part surface against the face of a surface plate
для проведения данной проверки на поверхность кантрольной плиты наносится краска (берлинская лазурь), затем чистая проверяемая поверхность прижимается к контрольной плите. плоскостность проверяемой поверхности, оценивается no наличию отпечатков краски (на выступающих участках). — то make the test, smear the face of the surface plate with marking (consisting of prussian blue or redlead with oil), then wipe clean the sruface to be checked and rub it lightly on the surface plate. the truth of the surface can be estimated by the appearance of the transferred marking.
-, повторная — recheck
- под током /напряжением/ (оборудования, системы) — test /check/ of equipment energized, alive (equipment) test
- по налету — check by flight hour(s)
-по налету, регламентная — periodic /scheduled/ maintenance cheek by flight hour(s)
-, послемонтажная — post-installation check
-, послеполетная — post-flight check
- по состоянию (по мере надобности) — оn-condition check (ос)
профилактическое техническое обслуживание (контроль качества ремонта), выполняемое в виде периодических осмотров, проверок (или испытаний изделия (агрегата), на обнаружение механических дефектов (в доступных пределах) для определения допустимости дальнейшей эксппуатации изделия (до следующей проверки по состоянию). — а failure preventive primary maintenance (overhaul control) process which requires that the item be periodically inspected, checked or tested against some appropriate physical standards (wear or deterioration limits) to determine whether the item can continue its service (for another ос check interval).
- по техническому состоянию — оn-condition check
- по форме "а" ("в", "с"), регламентная (периодиче — scheduled (periodic) "а" ("в", "с") check
- правильности ввода данных — data entry /insertion/ verification
-, предварительная — preliminary check
-, предвзлетная (по контрольной карте) — pre-takeoff check, before-takeoff check
-, предполетная — pre-flight check
-, предпосадочная (по контрольной карте) — pre-landing check, beforelanding check
-, предстартовая — prestart procedure
- приемистости (двигателя) — acceleration test
- прилегания поверхностей на краску (берлинскую лазурь) — check of the surfaces for close contacting indicated by continuity of (prussian blue) marking transferred
-, принудительная (вводимая вручную) — manually initiated /induced/ test /check/
- противообледенительной системы (надпись) — anti-ice test
- противопожарной системы (надпись) — firex test
- работоспособности — operational test
- работы — operational test
- радиального биения (рабочего колеса турбины (на оправке) — check of eccentricity /concentricity/ of turbine wheel (on mandrel)
-, регламентная — scheduled maintenance check
проверки самолета, его систем и агрегатов в указанные сроки. — those manufacturer recommended check and inspections of the aircraft, its systems and units dictated by the time limits.
- самолетов парка, выборочная — sampling inspection of fleet
"- сигнальных ламп" (надпись) — lamp test
- системы — system test (sys tst)
- системы сигнализации пожаpa — fire warning) test
"- системы сигн. пож. в otc. дв. (надпись) — eng compt fire warn test
-, совместная (проводимая поставщиком и покупателем) — conjoint check, check or test conjointly conducted (by supplier and buyer)
- соконусности несущего винта (вертолета) — rotor blade tracking test
- сопротивления изоляции — insulation-resistance test
test for measuring ohmic resistance of insulation.
- с помощью встроенного контроля — built-in test
- с (к-л.) пульта (или наборного поля) — test /check/ via /from/ сапtrol panel (or keyboard)
-, стартовая — on line test
-, стендовая — bench test
-, стендовая (испытание) — bench check/test/
- технического состояния — operational status check, check for condition
-, транзитная — transit check
план транзитного полета включает транзитную проверку. — the transit time schedule includes transit check.
-, тщательная — thorough check
-, функциональная — functional test
- электрической прочности (изоляции) — (insulation) voltage-withstand test
проверка способности изоляции выдерживать (повышеннoe против нормы) напряжение. — application of voltage (higher than rated) for determining the adequancy of insulation materials against breakdown.
- элементов конструкции (ла), выборочная — structural sampling test
- эффективности системы охлаждения (двигателя и редуктора вертолета) при взлете (висении, наборе высоты, снижении) — takeoff (hovering, climb, descent) cooling test
'включение проверки' (надпись) — test on
причина п. — reason for check /test/
производить п. по 3, пп. a,6 — test the unit according to requirements of para. 3 (a, b)Русско-английский сборник авиационно-технических терминов > проверка
- 1
- 2
См. также в других словарях:
Mandrel — For other uses, see Mandrel (disambiguation). Not to be confused with Mandrill (the primate species). Old shop made mandrel for turning hollow objects on an engine lathe … Wikipedia
metallurgy — metallurgic, metallurgical, adj. metallurgically, adv. metallurgist /met l err jist/ or, esp. Brit., /meuh tal euhr jist/, n. /met l err jee/ or, esp. Brit., /meuh tal euhr jee/, n. 1. the technique or science of working or heating metals so as… … Universalium
steel — steellike, adj. /steel/, n. 1. any of various modified forms of iron, artificially produced, having a carbon content less than that of pig iron and more than that of wrought iron, and having qualities of hardness, elasticity, and strength varying … Universalium
industrial glass — Introduction solid material that is normally lustrous and transparent in appearance and that shows great durability under exposure to the natural elements. These three properties lustre, transparency, and durability make glass a favoured… … Universalium
Lathe — A lathe (pronEng|ˈleɪð) is a machine tool which spins a block of material to perform various operations such as cutting, sanding, knurling, drilling, or deformation with tools that are applied to the workpiece to create an object which has… … Wikipedia
Rivet — A rivet is a mechanical fastener. Before it is installed it consists of a smooth cylindrical shaft with a head on one end. The end opposite the head is called the buck tail. On installation the rivet is placed in a pre drilled hole. Then the tail … Wikipedia
Tube bending — Bent tubing Shown is a trombone, it displays some U bends Tub … Wikipedia
Ring size — There are several systems for denoting the sizes of jewellery rings in use around the worldref|Ringsize: *In the United States and Canada, ring sizes are specified using a numerical scale, with quarter and half sizes. An increase of a full size… … Wikipedia
Internal ballistics — Internal ballistics, a subfield of ballistics, is the study of a projectile s behavior from the time its propellant s igniter is initiated until it exits the gun barrel. The study of internal ballistics is important to designers and users of… … Wikipedia
Metal spinning — A brass vase spun by hand. Mounted to the lathe spindle is the mandrel for the body of the vase a shell sits on the T rest. The foreground shows the mandrel for the base. Behind the finished vase are the spinning tools used to shape the metal.… … Wikipedia
Pipe and tube bender — Tube and pipe benders are machines which bend tube, pipe and solid metals. Pipe bending machines can either be human powered, hydraulic assisted, or hydraulic motor driven. In the pipe bending operation the tube may be supported internally or… … Wikipedia