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1 standard-frequency sign
The New English-Russian Dictionary of Radio-electronics > standard-frequency sign
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2 sign
1) сигнал || передавать сигналы; сигнализировать; давать сигнал || сигнальный2) знак || подавать знак(и)3) pl.; микр. межсоединения•- A sign- acknowledgement sign
- active line duration sign
- actuating sign
- alarm indication signs
- alarm sign
- alias sign
- all-sky sign
- alternation mark inversion sign
- altitude sign
- AMI sign
- amplitude-modulated sign
- analog sign
- analog/mixed sign
- anisochronous digital sign
- antipodal sign
- ATF sign
- audio sign
- aural sign
- autoalarm sign
- automatic track finding sign
- band-limited sign
- bandpass sign
- baseband sign
- beam sign
- bidirectional sign
- binary sign
- bioelectric sign
- bipolar sign
- black peak sign
- black sign
- blanked picture sign
- blanking sign
- blocking sign
- blue sign
- broadband sign
- B-sign
- burst sign
- busy back sign
- busy sign
- busy-flash sign
- B-Y sign
- call progress sign
- call sign
- call-confirmation sign
- call-control sign
- called-number signs
- camera sign
- carrier chrominance sign
- carrier color sign
- carrier detect sign
- carry clear sign
- carry complete sign
- carry initiating sign
- carry sign
- case-shift sign
- CD sign
- challenging sign
- channel identification sign
- chirp sign
- chroma sign
- chrominance sign
- circuit available sign
- clear back sign
- clear forward sign
- clear sign
- clearing sign
- clipped sign
- clock sign
- coded sign
- coherent sign
- color identification sign
- color sign
- color video sign
- color-bar sign
- color-burst sign
- color-difference sign
- color-picture sign
- color-sync sign
- color-television sign
- command destruct sign
- common-mode sign
- comparison sign
- compelled sign
- compensation sign
- complex analytical sign
- component color sign
- component sign
- component video sign
- composite color sign
- composite picture sign
- composite sign
- composite video sign
- composite-one-line sign
- compressed sign
- confusion sign
- contaminating sign
- control sign
- convergence sign
- convolved signs
- course-fine encoded video sign
- dark-spot sign
- data sign
- DC sign
- decoded sign
- dehopped sign
- desired sign
- despread sign
- detectable sign
- deterministic sign
- difference sign
- differential-mode sign
- digital sign of level 0
- digital sign of level 1
- digital sign of level 1C
- digital sign of level 2
- digital sign of level 3
- digital sign of level 4
- digital sign
- direct-sequence sign
- direct-sequence spread-spectrum sign
- discernible sign
- disconnect sign
- disk changed sign
- distinguishable sign
- distress sign
- Doppler-invariant sign
- Doppler-shifted sign
- double-sideband sign
- downstream sign
- driving sign
- duobinary sign
- echo sign
- electric sign
- element difference sign
- emergency sign
- enabling sign
- enciphered sign
- end-of-block sign
- end-of-copy sign
- end-of-data sign
- end-of-impulsing sign
- end-of-message sign
- end-of-pulsing sign
- end-of-selection sign
- engaged sign
- erasure sign
- error sign
- excitatory sign
- facsimile framing sign
- facsimile phasing sign
- facsimile sign
- false sign
- fault sign
- feedback control sign
- field sawtooth sign
- figures-shift sign
- fluctuating sign
- flyback sign
- forward recall sign
- frame difference sign
- frame sync sign
- frame-alignment sign
- framing sign
- free-line sign
- frequency-hopped sign
- frequency-modulated sign
- frequency-shift sign
- FS sign
- full bandwidth sign
- gating sign
- Gaussian sign
- ghost sign
- global sign
- green sign
- G-sign
- guidance sign
- G-Y sign
- hang-up sign
- heterochronous digital signs
- high-frequency sign
- high-level sign
- homing sign
- homochronous digital signs
- horizontal sync sign
- IBG sign
- identification sign
- idle indication sign
- IF sign
- IFF target sign
- impulse sign
- incoming sign
- inhibiting sign
- inhibitory sign
- injected sign
- in-phase sign
- input sign
- insertion test sign
- intelligence sign
- inter-block gap sign
- interfering sign
- interfield test sign
- intermediate frequency sign
- international code sign
- interrogation sign
- interrupt sign
- inversion sign
- I-sign
- isochronous digital sign
- jamming sign
- L sign
- large sign
- laser sign
- LB sign
- left sign
- left-backward sign
- left-forward sign
- LF sign
- limited sign
- line identification sign
- line sawtooth sign
- line sync sign
- linear FM sign
- locking sign
- logic sign
- loop actuating sign
- loop difference sign
- loop error sign
- loop feedback sign
- loop input sign
- loop output sign
- loop return sign
- low-frequency sign
- low-level radio-frequency sign
- low-level sign
- luminance sign
- mark sign
- marking sign
- masking sign
- mesochronous digital signs
- message sign
- message-bearing sign
- microwave sign
- MIDI sign
- minimum detectable sign
- minimum discernible sign
- mixed sign
- modulating sign
- monochrome sign
- monophonic sign
- M-sign
- multimode sign
- multiplexed sign
- myoelectric sign
- N sign
- narrow-band sign
- naught sign
- negative-going sign
- neuroelectric sign
- noise sign
- noise-free sign
- noise-like sign
- noisy sign
- nominal detectable sign
- noncompelled sign
- noncomposite sign
- number received sign
- offering sign
- off-hook sign
- omnibearing sign
- on-course sign
- on-hook sign
- optical sign
- outcoming sign
- output sign
- P sign
- packetized sign
- partial-response sign
- PCM sign
- permanent sign
- phantom sign
- phase-modulated sign
- phase-shift keyed sign
- phase-shift sign
- phasing sign
- photoelectric sign
- pickup sign
- picture sign
- picture-phone sign
- picture-shading sign
- pilot sign
- playback sign
- plesiochronous digital signs
- polar sign
- positive-going sign
- print contrast sign
- probing sign
- program sign
- protected sign
- pseudonoise sign
- pseudorandom sign
- pseudo-ternary sign
- pulsar sign
- pulse-code modulation sign
- pulsed sign
- Q-sign
- quadrature-phase subcarrier sign
- quantized sign
- R sign
- radio sign
- radio star sign
- radio-frequency sign
- radiotelephone distress sign
- random sign
- RB sign
- read sign
- reading sign
- ready-to-receive sign
- rectified sign
- red sign
- redundant sign
- reference sign
- reorder sign
- request sign
- rering sign
- restoring sign
- retransmitted sign
- returned sign
- RF sign
- RGB signs
- right sign
- right-backward sign
- right-forward sign
- ringing sign
- robust sign
- round-the-world sign
- R-Y sign
- sampled sign
- saturated sign
- saturating sign
- saw-tooth sign
- scrambling sign
- sense sign
- shading compensation sign
- singing sign
- single-mode sign
- single-sideband sign
- small sign
- sound sign
- sounding sign
- space sign
- spacing sign
- speech sign
- spread-spectrum sign
- spurious sign
- square sign
- square-wave sign
- SSB sign
- S-sign
- staircase video sign
- standard composite picture sign
- standard television sign
- standard-frequency sign
- start sign
- start-record sign
- start-stop sign
- status sign
- steady-state sign
- stereo sign
- stereophonic multiplex sign
- stereophonic sign
- stop sign
- stop-record sign
- stuffed sign
- subscriber identification sign
- sum sign
- supersync sign
- supervisory sign
- swept sign
- sync sign
- synchronizing sign
- synchronous transport sign
- synthetic speech sign
- target sign
- television relay sign
- television sign
- television standard sign
- test line sign
- test sign
- test-pattern sign
- threshold sign
- time sign
- time-limited sign
- timing sign
- tracking sign
- trigger sign
- triggering sign
- tristimulus signs
- unstuffed sign
- unvoiced sign
- upstream sign
- vertical insertion test sign
- vertical interval sign
- vertical sync sign
- vestigial sideband sign
- video sign
- visual sign
- voice sign
- voiced sign
- weighted sign
- white sign
- write sign
- Y-signThe New English-Russian Dictionary of Radio-electronics > sign
-
3 signal
1) сигнал || передавать сигналы; сигнализировать; давать сигнал || сигнальный2) знак || подавать знак(и)3) pl.; микр. межсоединения•- A sign- acknowledgement sign
- active line duration sign
- actuating sign
- alarm indication signs
- alarm sign
- alias sign
- all-sky sign
- alternation mark inversion sign
- altitude sign
- AMI sign
- amplitude-modulated sign
- analog sign
- analog/mixed sign
- anisochronous digital sign
- antipodal sign
- ATF sign
- audio sign
- aural sign
- autoalarm sign
- automatic track finding sign
- band-limited sign
- bandpass sign
- baseband sign
- beam sign
- bidirectional sign
- binary sign
- bioelectric sign
- bipolar sign
- black peak sign
- black sign
- blanked picture sign
- blanking sign
- blocking sign
- blue sign
- broadband sign
- B-sign
- burst sign
- busy back sign
- busy sign
- busy-flash sign
- B-Y sign
- call progress sign
- call sign
- call-confirmation sign
- call-control sign
- called-number signs
- camera sign
- carrier chrominance sign
- carrier color sign
- carrier detect sign
- carry clear sign
- carry complete sign
- carry initiating sign
- carry sign
- case-shift sign
- CD sign
- challenging sign
- channel identification sign
- chirp sign
- chroma sign
- chrominance sign
- circuit available sign
- clear back sign
- clear forward sign
- clear sign
- clearing sign
- clipped sign
- clock sign
- coded sign
- coherent sign
- color identification sign
- color sign
- color video sign
- color-bar sign
- color-burst sign
- color-difference sign
- color-picture sign
- color-sync sign
- color-television sign
- command destruct sign
- common-mode sign
- comparison sign
- compelled sign
- compensation sign
- complex analytical sign
- component color sign
- component sign
- component video sign
- composite color sign
- composite picture sign
- composite sign
- composite video sign
- composite-one-line sign
- compressed sign
- confusion sign
- contaminating sign
- control sign
- convergence sign
- convolved signs
- course-fine encoded video sign
- dark-spot sign
- data sign
- DC sign
- decoded sign
- dehopped sign
- desired sign
- despread sign
- detectable sign
- deterministic sign
- difference sign
- differential-mode sign
- digital sign of level 0
- digital sign of level 1
- digital sign of level 1C
- digital sign of level 2
- digital sign of level 3
- digital sign of level 4
- digital sign
- direct-sequence sign
- direct-sequence spread-spectrum sign
- discernible sign
- disconnect sign
- disk changed sign
- distinguishable sign
- distress sign
- Doppler-invariant sign
- Doppler-shifted sign
- double-sideband sign
- downstream sign
- driving sign
- duobinary sign
- echo sign
- electric sign
- element difference sign
- emergency sign
- enabling sign
- enciphered sign
- end-of-block sign
- end-of-copy sign
- end-of-data sign
- end-of-impulsing sign
- end-of-message sign
- end-of-pulsing sign
- end-of-selection sign
- engaged sign
- erasure sign
- error sign
- excitatory sign
- facsimile framing sign
- facsimile phasing sign
- facsimile sign
- false sign
- fault sign
- feedback control sign
- field sawtooth sign
- figures-shift sign
- fluctuating sign
- flyback sign
- forward recall sign
- frame difference sign
- frame sync sign
- frame-alignment sign
- framing sign
- free-line sign
- frequency-hopped sign
- frequency-modulated sign
- frequency-shift sign
- FS sign
- full bandwidth sign
- gating sign
- Gaussian sign
- ghost sign
- global sign
- green sign
- G-sign
- guidance sign
- G-Y sign
- hang-up sign
- heterochronous digital signs
- high-frequency sign
- high-level sign
- homing sign
- homochronous digital signs
- horizontal sync sign
- IBG sign
- identification sign
- idle indication sign
- IF sign
- IFF target sign
- impulse sign
- incoming sign
- inhibiting sign
- inhibitory sign
- injected sign
- in-phase sign
- input sign
- insertion test sign
- intelligence sign
- inter-block gap sign
- interfering sign
- interfield test sign
- intermediate frequency sign
- international code sign
- interrogation sign
- interrupt sign
- inversion sign
- I-sign
- isochronous digital sign
- jamming sign
- L sign
- large sign
- laser sign
- LB sign
- left sign
- left-backward sign
- left-forward sign
- LF sign
- limited sign
- line identification sign
- line sawtooth sign
- line sync sign
- linear FM sign
- locking sign
- logic sign
- loop actuating sign
- loop difference sign
- loop error sign
- loop feedback sign
- loop input sign
- loop output sign
- loop return sign
- low-frequency sign
- low-level radio-frequency sign
- low-level sign
- luminance sign
- mark sign
- marking sign
- masking sign
- mesochronous digital signs
- message sign
- message-bearing sign
- microwave sign
- MIDI sign
- minimum detectable sign
- minimum discernible sign
- mixed sign
- modulating sign
- monochrome sign
- monophonic sign
- M-sign
- multimode sign
- multiplexed sign
- myoelectric sign
- N sign
- narrow-band sign
- naught sign
- negative-going sign
- neuroelectric sign
- noise sign
- noise-free sign
- noise-like sign
- noisy sign
- nominal detectable sign
- noncompelled sign
- noncomposite sign
- number received sign
- offering sign
- off-hook sign
- omnibearing sign
- on-course sign
- on-hook sign
- optical sign
- outcoming sign
- output sign
- P sign
- packetized sign
- partial-response sign
- PCM sign
- permanent sign
- phantom sign
- phase-modulated sign
- phase-shift keyed sign
- phase-shift sign
- phasing sign
- photoelectric sign
- pickup sign
- picture sign
- picture-phone sign
- picture-shading sign
- pilot sign
- playback sign
- plesiochronous digital signs
- polar sign
- positive-going sign
- print contrast sign
- probing sign
- program sign
- protected sign
- pseudonoise sign
- pseudorandom sign
- pseudo-ternary sign
- pulsar sign
- pulse-code modulation sign
- pulsed sign
- Q-sign
- quadrature-phase subcarrier sign
- quantized sign
- R sign
- radio sign
- radio star sign
- radio-frequency sign
- radiotelephone distress sign
- random sign
- RB sign
- read sign
- reading sign
- ready-to-receive sign
- rectified sign
- red sign
- redundant sign
- reference sign
- reorder sign
- request sign
- rering sign
- restoring sign
- retransmitted sign
- returned sign
- RF sign
- RGB signs
- right sign
- right-backward sign
- right-forward sign
- ringing sign
- robust sign
- round-the-world sign
- R-Y sign
- sampled sign
- saturated sign
- saturating sign
- saw-tooth sign
- scrambling sign
- sense sign
- shading compensation sign
- singing sign
- single-mode sign
- single-sideband sign
- small sign
- sound sign
- sounding sign
- space sign
- spacing sign
- speech sign
- spread-spectrum sign
- spurious sign
- square sign
- square-wave sign
- SSB sign
- S-sign
- staircase video sign
- standard composite picture sign
- standard television sign
- standard-frequency sign
- start sign
- start-record sign
- start-stop sign
- status sign
- steady-state sign
- stereo sign
- stereophonic multiplex sign
- stereophonic sign
- stop sign
- stop-record sign
- stuffed sign
- subscriber identification sign
- sum sign
- supersync sign
- supervisory sign
- swept sign
- sync sign
- synchronizing sign
- synchronous transport sign
- synthetic speech sign
- target sign
- television relay sign
- television sign
- television standard sign
- test line sign
- test sign
- test-pattern sign
- threshold sign
- time sign
- time-limited sign
- timing sign
- tracking sign
- trigger sign
- triggering sign
- tristimulus signs
- unstuffed sign
- unvoiced sign
- upstream sign
- vertical insertion test sign
- vertical interval sign
- vertical sync sign
- vestigial sideband sign
- video sign
- visual sign
- voice sign
- voiced sign
- weighted sign
- white sign
- write sign
- Y-signThe New English-Russian Dictionary of Radio-electronics > signal
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4 SF
1) Общая лексика: (сокр. от science fiction) научная фантастика2) Компьютерная техника: Support Facility3) Геология: Shallow Faulting4) Медицина: HGF, hepapoietin A, hepatocyte growth factor, scatter factor, рассеивающий фактор, фактор роста гепатоцитов5) Американизм: Senate File, Short Form6) Спорт: Sets For, Sword And Fist7) Военный термин: Sherwood Foresters, safety factor, safety fuze, salvo fire, scale factor, scouting force, sea frontier, security forces, semifixed, service form, signal flare, slow fire, sound and flash, special facility, special forces, standard form, stock fund, strategic forces, successful flight, sustained fire8) Техника: Starter Foil, safety features, safety function, scattering factor, scattering function, select frequency, select frequency circuit, semiconductor film, separation factor, severity factor, shield factor, silicon film, sound-and-flash, spatial filtering, spent fuel, spontaneous fission, sputtered film, stable failure, superconducting film, straight flange9) Сельское хозяйство: swine fever10) Анатомия: synovial fluid11) Математика: San Fransisco12) Метеорология: Small Fall13) Юридический термин: Subject Fit14) Бухгалтерия: Structural Funds, Surcharge Free15) Грубое выражение: Sick Fucker, Starting Fantasy, Sucker Free16) Политика: South Africa17) Телекоммуникации: Single Frequency, Status Field, Superframe Format (T-1)18) Сокращение: San Francisco, Science Fiction; Speculative Fiction, Signal Frequency, South Africa (NATO country code), Star Frontiers, Subject Field, Supporting Fire, sea flood, slip fit, spot-face, standard frequency19) Университет: The Sophomore Freshman20) Физика: Shield Fusion, Strong Field21) Физиология: Sandals And Feet, Spinal fluid, Superior Feel22) Электроника: Simple Flux, Singular Field, Super Fluorescence23) Вычислительная техника: Switching Fabric, science fiction, sign flag, subframe, superframe, Sign Flag (Assembler), Service Feature (IN), флаг знака24) Литература: НФ (science fiction - научная фантастика)25) Нефть: safety factor on surfaces to be protected by CP, sand fracturing, seals failed, shrinkage factor, surfactants, коэффициент безопасности (safety factor), коэффициент защиты поверхностей, защищённых с помощью катодной защиты, показатель серьёзности (отказа; severity factor)26) Банковское дело: фонд погашения (sinking fund)27) Транспорт: Solid Frame, Starboard Forward28) Пищевая промышленность: Shun Fat, Stimulant Free, Sucrose Formulated29) Фирменный знак: San Fernando Electronics, Small Firm30) Холодильная техника: self-evaporation factor31) СМИ: Speculative Fiction32) Деловая лексика: Scrap Files33) Глоссарий компании Сахалин Энерджи: square foot (feet), sweet fluid, кв. фут, фут34) Образование: School Food35) Инвестиции: sinking fund36) Сетевые технологии: save fail, sequential file, безопасный сбой, последовательный файл37) Полимеры: self-feeding, semifinished, semiflexible, sliced film, soluble fraction38) Программирование: Semi Floating, Sort Flag, Store And Forward39) Ядерная физика: Separate Function40) Сахалин А: фут[up 2]41) Безопасность: Signature File42) Расширение файла: OS/2 WPS attribute storage, Stopping Factor, IRCAM Sound File43) Нефть и газ: onshore facilities, shore facilities, spread footing, SF MT, SFMT44) Электротехника: safety fuse45) Общественная организация: Sunshine Foundation46) Чат: Supremely Frustrating47) Правительство: Scranton Flats, Sneads Ferry, North Carolina48) NYSE. Stifel Financial Corporation49) НАСА: Structural Foam, Surface Features50) Программное обеспечение: Snazzy File51) Хобби: Scarcely Found52) Федеральное бюро расследований: San Francisco Field Office53) Единицы измерений: Square Feet, Square Foot -
5 sf
1) Общая лексика: (сокр. от science fiction) научная фантастика2) Компьютерная техника: Support Facility3) Геология: Shallow Faulting4) Медицина: HGF, hepapoietin A, hepatocyte growth factor, scatter factor, рассеивающий фактор, фактор роста гепатоцитов5) Американизм: Senate File, Short Form6) Спорт: Sets For, Sword And Fist7) Военный термин: Sherwood Foresters, safety factor, safety fuze, salvo fire, scale factor, scouting force, sea frontier, security forces, semifixed, service form, signal flare, slow fire, sound and flash, special facility, special forces, standard form, stock fund, strategic forces, successful flight, sustained fire8) Техника: Starter Foil, safety features, safety function, scattering factor, scattering function, select frequency, select frequency circuit, semiconductor film, separation factor, severity factor, shield factor, silicon film, sound-and-flash, spatial filtering, spent fuel, spontaneous fission, sputtered film, stable failure, superconducting film, straight flange9) Сельское хозяйство: swine fever10) Анатомия: synovial fluid11) Математика: San Fransisco12) Метеорология: Small Fall13) Юридический термин: Subject Fit14) Бухгалтерия: Structural Funds, Surcharge Free15) Грубое выражение: Sick Fucker, Starting Fantasy, Sucker Free16) Политика: South Africa17) Телекоммуникации: Single Frequency, Status Field, Superframe Format (T-1)18) Сокращение: San Francisco, Science Fiction; Speculative Fiction, Signal Frequency, South Africa (NATO country code), Star Frontiers, Subject Field, Supporting Fire, sea flood, slip fit, spot-face, standard frequency19) Университет: The Sophomore Freshman20) Физика: Shield Fusion, Strong Field21) Физиология: Sandals And Feet, Spinal fluid, Superior Feel22) Электроника: Simple Flux, Singular Field, Super Fluorescence23) Вычислительная техника: Switching Fabric, science fiction, sign flag, subframe, superframe, Sign Flag (Assembler), Service Feature (IN), флаг знака24) Литература: НФ (science fiction - научная фантастика)25) Нефть: safety factor on surfaces to be protected by CP, sand fracturing, seals failed, shrinkage factor, surfactants, коэффициент безопасности (safety factor), коэффициент защиты поверхностей, защищённых с помощью катодной защиты, показатель серьёзности (отказа; severity factor)26) Банковское дело: фонд погашения (sinking fund)27) Транспорт: Solid Frame, Starboard Forward28) Пищевая промышленность: Shun Fat, Stimulant Free, Sucrose Formulated29) Фирменный знак: San Fernando Electronics, Small Firm30) Холодильная техника: self-evaporation factor31) СМИ: Speculative Fiction32) Деловая лексика: Scrap Files33) Глоссарий компании Сахалин Энерджи: square foot (feet), sweet fluid, кв. фут, фут34) Образование: School Food35) Инвестиции: sinking fund36) Сетевые технологии: save fail, sequential file, безопасный сбой, последовательный файл37) Полимеры: self-feeding, semifinished, semiflexible, sliced film, soluble fraction38) Программирование: Semi Floating, Sort Flag, Store And Forward39) Ядерная физика: Separate Function40) Сахалин А: фут[up 2]41) Безопасность: Signature File42) Расширение файла: OS/2 WPS attribute storage, Stopping Factor, IRCAM Sound File43) Нефть и газ: onshore facilities, shore facilities, spread footing, SF MT, SFMT44) Электротехника: safety fuse45) Общественная организация: Sunshine Foundation46) Чат: Supremely Frustrating47) Правительство: Scranton Flats, Sneads Ferry, North Carolina48) NYSE. Stifel Financial Corporation49) НАСА: Structural Foam, Surface Features50) Программное обеспечение: Snazzy File51) Хобби: Scarcely Found52) Федеральное бюро расследований: San Francisco Field Office53) Единицы измерений: Square Feet, Square Foot -
6 table
1) стол || настольный2) планшет3) плита4) площадка5) расписание6) сводка7) таблица || составлять таблицу8) стенд9) табель10) табличный•- full contingency table - ground water table - intraclass correlation table - table of normal distribution - table of shuffled tableto set up а plane table — геод. устанавливать мензулу на местности
См. также в других словарях:
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Orthogonal frequency-division multiplexing — Passband modulation v · d · e Analog modulation AM · … Wikipedia
Neon sign — … Wikipedia
North American call sign — Many countries have specific conventions for classifying call signs by transmitter characteristics and location. The North American call sign format for radio and television call signs follows a number of conventions. All call signs begin with a… … Wikipedia
Call sign — In broadcasting and radio communications, a call sign (also known as a callsign or call letters, or abbreviated as a call, or otherwise known as a handle) is a unique designation for a transmitting station. In some countries they are used as… … Wikipedia
Indian Standard Time — (IST) is the time observed throughout India and Sri Lanka, with a time offset of . India does not observe daylight saving time, (DST) or other seasonal adjustments, although DST was used briefly during the Sino–Indian War of 1962 and the… … Wikipedia
Traffic sign design — Any tasks involved in the process of designing a traffic sign. Traffic signs give you important information about the law, warn you about dangerous conditions and help you find your way. These signs vary depending upon their use; they use… … Wikipedia
Dual-tone multi-frequency signaling — One of the few production telephone DTMF keypads with all 16 keys, from an Autovon Telephone. The column of red keys produces the A, B, C, and D DTMF events. Dual tone multi frequency signaling (DTMF) is used for telecommunication signaling over… … Wikipedia
Time and Frequency Standards Laboratory — The Time and Frequency Standards Laboratory is a part of the National Physical Laboratory in New Delhi which maintains and calibrates the Indian Standard Time.Features of the Time and Frequency Standards Lab include: * Four caesium and rubidium… … Wikipedia