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1 находить всё более широкое применение
•These steels are finding ever-widening application in metallurgy.
•New fibres find expanding applications in engineering and industry.
•For acetylation, ketene is finding ever increasing favour.
•Today a growing number of uses are being found for these units.
•Zinc will find increased usage on these cars.
Русско-английский научно-технический словарь переводчика > находить всё более широкое применение
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2 находить всё более широкое применение
•These steels are finding ever-widening application in metallurgy.
•New fibres find expanding applications in engineering and industry.
•For acetylation, ketene is finding ever increasing favour.
•Today a growing number of uses are being found for these units.
•Zinc will find increased usage on these cars.
Русско-английский научно-технический словарь переводчика > находить всё более широкое применение
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3 в полевых условиях
•These units are immediately available for in-the-field replacement.
Русско-английский научно-технический словарь переводчика > в полевых условиях
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4 в полевых условиях
•These units are immediately available for in-the-field replacement.
Русско-английский научно-технический словарь переводчика > в полевых условиях
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5 импульсный источник электропитания с коммутацией тока на первичной стороне
импульсный источник электропитания с коммутацией тока на первичной стороне
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In primary switch mode power supplies, the AC mains voltage is first rectified and smoothed and then chopped ("switched"). Chopping means that the DC voltage is switched periodically at a frequency of 40 to 200 kHz using a power transistor.
In contrast to linearly regulated power supplies, the power transistor does not act as a variable resistor but as a switch instead. This generates a square-wave AC voltage that is transformed to the secondary circuit using a high-frequency transformer. In the secondary circuit, the voltage is rectifi ed and smoothed. The quantity of energy transformed to the secondary circuit is controlled, depending on the load, by varying the chopping rate. The longer the transistor is conductive, the higher is the quantity of energy transformed to the secondary circuit ( pulse width modulation).
Due to the use of high-frequency AC voltage, primary switch mode power supplies have the decisive advantage that their transformer can be of much smaller size than required for the transformation of low frequencies. This reduces the weight and the dissipation inside the unit. The effi ciency of these units is between 85 and 95 %. Since the output voltage does not directly depend on the input voltage, these units can be used for a wide input voltage range and can even be supplied with DC voltage. Furthermore, it is possible to buffer short-time mains voltage breakdowns up to 200 ms. However, the power failure buffering time is limited by the size of capacitor C1 since a longer buffering time requires a higher capacity and thus a bigger size of the capacitor. Especially in case of small power supplies this is not desirable.
Therefore, a practicable compromise has to be made between the size of the power supply and the buffering time.
Primary switch mode power supplies can be used for all purposes. For example, they are suitable for the supply of all kind of electronics as well as for electromechanical applications.
[ABB]Тематики
EN
Русско-английский словарь нормативно-технической терминологии > импульсный источник электропитания с коммутацией тока на первичной стороне
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6 резервирование с развязкой источников электропитания
резервирование с развязкой источников электропитания
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Рис. ABB
True redundancy using a CP-A RUFor true redundancy it is necessary to provide decoupling of the individual power supplies.
Otherwise, the failed power supply could possibly act as a load for the other power supply or, in the worst case, cause a short circuit on the secondary side resulting in a failure of the second power supply.
Decoupling of the power supplies has to be performed by connecting decoupling diodes (so called O-ring diodes) to the secondary outputs. These diodes prevent mutual loading of the power supplies in case of a fault and thus guarantee continuous supply.
For the setup of redundant power supply systems, ABB offers two redundancy units, the CP-RUD (for output currents of up to 5 A) and the CP-A RU (for output currents of up to 40 A). The inputs of these units are connected to the terminals L+ and L- of the power supplies (many other manufacturers often consider L+ only). The loads are supplied directly from the outputs of the redundancy unit.
[ABB]Тематики
EN
Русско-английский словарь нормативно-технической терминологии > резервирование с развязкой источников электропитания
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7 большинство
the majority, plurality, most of, most + существительное• Большинство из этих установок разрушится в течение десяти лет. - Most of these units will fail within ten years.• Большинство инженеров интересуются (чем-л)... - The majority of engineers are concerned with...• Большинство физиков одобряют идею, что... - Most physicists accept the notion that...• В большинстве практических ситуаций ничего из этой информации не известно. - In most practical situations, neither of these pieces of information is given.• Для большинства подобных проблем достаточно (установить и т. п.)... - For most such problems it is sufficient to...• Для большинства целей, однако, достаточно (выбрать и т. п.)... - For most purposes it is, however, sufficient to...• Кажется, что большинство физиков согласно, что... - Most physicists seem to agree that...• Однако подавляющее большинство практических задач рассматривает... - However, the vast majority of practical problems are concerned with...• При выводе большинства этих свойств отправной точкой служит наблюдение... - In establishing most of these properties the starting point is the observation that...• Эти условия удовлетворяются для большинства... - These conditions are satisfied for most...• Это справедливо для большинства... - This is true for the majority of... -
8 приблизительно
. около; по приближённым оценкам; порядка; приближённо описывать; приближённо вычислять; примерно; согласно подсчётам•The distribution of craters agrees broadly with estimates of...
•The world's chemical industry then marketed an estimated 1000 new synthetic chemicals each year.
•The conglomerate was tilted to something like 45 degrees.
•In a million years or so even the most rapidly spinning neutron star slows down.
•This concept appeared near the middle of the 19th century.
•Theoretically iron crystals should resist deformation at stresses approaching [or of about (or around), or in the neighbourhood of] several million psi.
•These steels have yield strengths in the 2,000,000 psi area (or in the area of 2,000,000 psi).
•The maximum strain was in the neighbourhood (or vicinity) of 2%.
•These disturbances are propagated at roughly the speed of sound.
•The "dilute form" in percent of total concentration was calculated roughly.
•Some 250 Mcf of nitrogen was pumped into the line.
•The terminal velocity is roughly constant.
•The laser output pulses have an estimated power of over 1 MW.
•The strip should be heated at around 1200°F.
Русско-английский научно-технический словарь переводчика > приблизительно
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9 на месте
•This is a method for in situ insulation.
•We found a locally available supply of aggregate.
•On-the-site casting of concrete.
•An on-the-spot investigation was conducted.
•Towers are assembled on the spot by the erecting crew.
•An extensive theoretical analysis was followed by a detailed on-site measurement programme.
Русско-английский научно-технический словарь переводчика > на месте
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10 Выр
General subject: grading capacitor (Capacitors are also used in parallel to interrupt units of a high-voltage circuit breaker in order to equally distribute the voltage between these units. In this case they are called grading capacitors.) -
11 на месте
•This is a method for in situ insulation.
•We found a locally available supply of aggregate.
•On-the-site casting of concrete.
•An on-the-spot investigation was conducted.
•Towers are assembled on the spot by the erecting crew.
•An extensive theoretical analysis was followed by a detailed on-site measurement programme.
* * *На месте - al (the) site, on (the) site, in situ, in place, on the spot (на месте использования, эксплуатации); locally (по месту, в месте возникновения чего-либо)The fuel processing for the semiclean liquid fuel was off site; the low-Btu gas was produced on site.Manufacturers typically recommend on-site replacement of the entire assembly when servicing is necessary.The calibration was performed in situ, and under the same conditions of operation that are present when the tests are performed.A better procedure is to calibrate in-place or on-line so that stresses and connection errors are acknowledged and eliminated as random, unknown errors.So our analyst, with the help of a pool of experts, can frequently restore your terminals on the spot.The Model 572 permits sophisticated measurement and control functions, as well as on-the-spot calibration.All parameters, except smoke, are recorded locally and are transmitted to the data acquisition system.Русско-английский научно-технический словарь переводчика > на месте
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12 крыло
wing
основное назначение крыла — wing consists of center wing,
- создание подъемной сипы, потребной для осуществления полета самолета. крыло может состоять из центраплана, средней части (счк) и отъемной части (очк). в конструкцию крыла входят лонжероны, нервюры, стрингеры, обшивка, элементы 6аков-кессонов и др. к крылу относятся закрылки, элероны, спойлеры, предкрылки. (рис. 8, 9, 10). — inner wing and outer wing structural units which enable atmosphere to lift the aircraft, integral fuel tank structure and components which make up these units such as spars, skin, ribs, stringers, clamshells, scuppers, etc, and structure of flaps, ailerons, spoilers and slats.
-, адаптивное крыло изменяемой формы, профиля. — adaptive wing
-, аэродинамическое чистое — clean wing
- бесконечного размаха — infinite-span /endless-span/ wing
крыло, рассматриваемое для упрощения в теоретической аэродинамике, без учета концевых вихрей и индуктивного лобового сопротивпемия. — in aerodynamic theory, а wing of endless span, thus having no tip vortices nor induced drag, assumed for purpose of simplification.
-, верхнее (биплана) (рис. 2) — upper wing
-, вынесенное вперед (биплана) (рис. 2) — wing with positive stagger
вынос крыла считается положительным, если верхнее крыло выступает вперед над нижним. — the stagger is positive when the upper wing is in advance of the lower.
-, высокораспопоженное — high wing
-,"гладкое" (с невыпущенной или отказавшей механизацией) — lean wing
-, двухлонжеронное — two-spar wing
- изменяемого профиля (адаптивное) — adaptive wing
- кессонной конструкции — torsion box wing
лонжероны кессона образуют отсек топливного бака, — spars of torsion box wing form integral fuel tank.
-, кольцевое (колеоптера) — annular wing
-, левое — left wing
-, летающее (самолет) — tailless airplane
- малого удлинения и сужения — stub wing
-, многолонжеронное — multispar wing
-, моноблочное — stressed-skin wing
-, неподвижное (неподвижная часть крыла при наличии пчк) — fixed wing
-, нижнее (биплана) (рис. 2) — lower wing
-, низкораспопоженное — low wing
- носовое (схемы "утка") — canard
-, однолонжеронное — single spar /monospar/ wing
-, одностоечное (биплана) — single bay wing
- оживальной формы — ogival /ogee/ wing
- (-) парасоль — parasole wing
- переднее (схемы "утка") — canard
- переменной стреловидности — variable sweep wing
-, поворотное — pivoting wing
-, поворотное (подвижная часть крыла, пчк) — pivoting wing
-, правое — right wing
-, прямоугольное — rectangular wing
- с изменяемой геометрией — variable-geometry (vg) wing
- с изменяемой площадью — variable-area wing
- с изменяемым профилем (адаптивное) — adaptive wing
- с изменяемым углом атаки — variable-incidence wing
- с изменяемым углом установки — variable-incidence wing
- с механизацией — wing with high-lift devices
- с наплывами по передней кромке — saw-tooth leading edge (le) wing
- с обратной стреловидностью — sweptforward wing, forward swept wing
- с отрицательным углом поперечного v (рис. 136) — anhedral wing
- с переменной стреловидностью — variable sweep wing
- с положительным углом поперечного v (рис. 136) — dihedral wing
- с расчалками — braced wing
- с углом стреловидности... градусов по передней кромке (рис. 8) — wing with... degrees leading edge (le) sweep
- с углом стреловидности... градусов по четвертям хорд — wing with... degrees sweep at quarter chord (or at 25 % сhord)
- с управляемым пограничным слоем — wing with boundary layer сапtrol
-, свободнонесущее — cantilever wing
крыло, установленное по принципу консольной балки, — а wing built on the principle of а cantilever beam.
-, серповидное — crescent wing
-, складывающееся — folding wing
-, среднераспопоженное — mid wing
-, стреловидное — swept wing
-, сужающееся — tapered wing
- типа "обратная чайка" — inverted-gull wing
- типа "чайка" — gull wing
-, трапецевидное — tapered wing
крыло с уменьшающейся длиной хорды от корня к законцовке. — the tapered wing has a progressive decrease in the chord length from the root to the tip.
-, треугольное — delta wing
-, трехлонжеронное — three-spar wing
заклинение к. (угол установки) — angle of wing setting, wing incidence
нагрузка на к. — wing load
неподвижная часть к. (нчк) — fixed wing (section)
обтекание к. — flow about wing
опускание к. — wing dropping
отъемная часть к. (очк) — outer wing
площадь к. — wing area
площадь к. без подфюзеляжной части — net wing area
площадь с подфюзеляжной частью — gross wing area
поверхность к. (верхняя, нижняя) — wing surface (upper, lower)
подвижная часть к. (пчк) — pivoting wing
размах к. — wing span
разъем к. — wing joint
расположение к. — wing position
средняя часть к. (счк) — inner wing
стыковка к. (к фюзеляжу) — wing attachment (to fuselage)
сужение к. — wing taper
сужение к. (относительное) — wing taper ratio
угол установки к. — angle of wing setting
удлинение к. — aspect ratio (ar)
отстыковать к. от фюзеляжа — detach the wing from the fuselageРусско-английский сборник авиационно-технических терминов > крыло
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13 гибкий подход к вопросам охраны окружающей среды
гибкий подход к вопросам охраны окружающей среды
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[ http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]EN
flexible approach to environmental protection
Plans, referred to in various rules as emissions averaging, or flexible compliance plans, allow facilities to undercontrol some emission points that are too costly to control to mandated levels as long as these units are balanced by overcontrolling other emission units that are more cost-effective to control. (Source: ENVAR)
[http://www.eionet.europa.eu/gemet/alphabetic?langcode=en]Тематики
EN
DE
FR
Русско-английский словарь нормативно-технической терминологии > гибкий подход к вопросам охраны окружающей среды
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14 ограниченный
•In its own circumscribed domain...
•These units have a restricted (or limited) speed of response.
•The need to obtain increased output from a restricted labour force...
•Such converters have limited applications.
II•The area enclosed by the curve line and the straight line...
•We assume a region bounded by the axis t = 0, the line t = t(), and a characteristic issuing out of the origin.
•A crystal is an organized solid bounded by crystal faces.
•These rocks are characterized by successive layers or beds of material limited above and below by planes called bedding planes.
Русско-английский научно-технический словарь переводчика > ограниченный
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15 порядка
•Calculations indicate that laser energies of (or on, or in) the order of 5,000 joules will be needed.
•These steels have yield strengths in the 200,000 psi area.
•At temperatures in the neighbourhood of 1000°C...
•Usual burning times are of ( the) order (of) 150 sec.
Русско-английский научно-технический словарь переводчика > порядка
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16 пускать в эксплуатацию
•The station will be commissioned in 1992.
•These instructions will enable the user to install, set to work, and maintain the recorder in first-class working order.
•The third unit goes on line in December.
•These units will go on stream when they are delivered to location.
•The ship was put into service in April 1982.
•To put the boiler into service,...
Русско-английский научно-технический словарь переводчика > пускать в эксплуатацию
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17 образовать
(= образовывать) form, make up, give rise to, yield, constitute, develop, organize• А есть угол, который образует касательная... с осью абсцисс. - Л is the angle the tangent to the curve у = f(x) at x makes with the ж-axis.• Затем мы пересчитываем количество данных единиц, число которых и образует измеряемую величину. - Then we count the number of these units which together make up the quantity to be measure.• Итак, соотношения (2)-(4) образуют необходимые условия для... - Eqs. (2) - (4) then constitute the necessary conditions for...• Управляющее и арифметико-логическое устройства, вместе с блоком памяти, образуют ЦПУ. - The control unit, the arithmetical-logical unit, and memory together are classified as the CPU.• Эти три леммы и образуют доказательство теоремы 2. - The three lemmas constitute the proof of Theorem 2.• Эти функции образуют шесть групп... - These functions form six groups with four functions in each group. -
18 большинство
•For the most part the machines employed for this work are fully automatic.
•The majority (or Most) of these units will be small.
•In most (or the majority of) cases...
* * *Большинство -- most; most of; the majority of; much ofIt was evident that stratified flow prevailed for most of the test conditions.The majority of engines use fuels very close in properties to kerosene.Русско-английский научно-технический словарь переводчика > большинство
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19 большинство
•For the most part the machines employed for this work are fully automatic.
•The majority (or Most) of these units will be small.
•In most (or the majority of) cases...
Русско-английский научно-технический словарь переводчика > большинство
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20 иметь ограниченное применение
Русско-английский научно-технический словарь переводчика > иметь ограниченное применение
См. также в других словарях:
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