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21 primary rate access connection element
English-Russian dictionary of modern telecommunications > primary rate access connection element
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22 primary rate interface
English-Russian dictionary of modern telecommunications > primary rate interface
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23 primary rate interface ISDN
English-Russian dictionary of modern telecommunications > primary rate interface ISDN
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24 primary-rate interface
English-Russian dictionary of telecommunications and their abbreviations > primary-rate interface
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25 Primary Rate Interface
первичный интерфейс обмена; интерфейс передачи с базовой скоростьюEnglish-Russian information technology > Primary Rate Interface
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26 primary rate interface
English-Russian dictionary of Information technology > primary rate interface
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27 ISDN-primary rate interface
интерфейс передачи данных с базовой скоростью в сети ЦСИС
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[Л.Г.Суменко. Англо-русский словарь по информационным технологиям. М.: ГП ЦНИИС, 2003.]Тематики
EN
Англо-русский словарь нормативно-технической терминологии > ISDN-primary rate interface
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28 ISDN Primary Rate Interface
Универсальный англо-русский словарь > ISDN Primary Rate Interface
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29 PRA (Primary Rate Access)
Телекоммуникации: Интерфейс первичного доступаУниверсальный англо-русский словарь > PRA (Primary Rate Access)
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30 International Primary Rate Access (IPRA)
международный доступ на первичной скорости передачиEnglish-Russian dictionary of modern telecommunications > International Primary Rate Access (IPRA)
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31 rate
1) коэффициент; степень2) скорость; интенсивность; частота3) оценка4) оценивать•- arrival rate
- asynchronous rate
- average envelope crossing rate
- average transfer rate
- basic rate
- baud rate
- bit error rate
- bit rate
- bit transfer rate
- block error rate
- byte rate
- calling rate
- character error rate
- chart-feed rate
- chip rate
- clock rate
- conversion rate
- data rate
- data receive rate
- data signalling rate
- data transfer rate
- data transmission rate
- dot rate
- double data rate
- element error rate
- error rate
- extrapolated failure rate
- failure rate
- frame rate
- generation rate
- hazard rate
- hit rate
- impulse recurrence rate
- in-commission rate
- information display rate
- information rate
- malfunction rate
- message transmission rate
- miss rate
- Nyquist rate
- operating rate
- paging rate
- per-digit information rate
- per-digit information transmission rate
- primary rate
- pulse rate
- pulse repetition rate
- rate of exchange
- raw error rate
- reading rate
- recording rate
- recurrence rate
- reduction rate
- redundancy rate
- refresh rate
- repetition rate
- reset rate
- residual-error rate
- response rate
- retrieval rate
- sample rate
- sampling rate
- scan rate
- scanning rate
- service rate
- signal rate
- signaling rate
- slew rate
- stroke rate
- stuffing rate
- sub-Nyquist rate
- success rate
- super-Nyquist rate
- sustained rate
- synchronous rate
- toggle rate
- transfer rate
- transmission rate
- undetected error rate
- writing rateEnglish-Russian dictionary of computer science and programming > rate
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32 primary flow rate
начальный расход (среды)
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[А.С.Гольдберг. Англо-русский энергетический словарь. 2006 г.]Тематики
EN
расход теплоносителя в первом контуре ядерного реактора
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[А.С.Гольдберг. Англо-русский энергетический словарь. 2006 г.]Тематики
EN
Англо-русский словарь нормативно-технической терминологии > primary flow rate
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33 primary switch mode power supply
- импульсный источник электропитания с коммутацией тока на первичной стороне
импульсный источник электропитания с коммутацией тока на первичной стороне
-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
Англо-русский словарь нормативно-технической терминологии > primary switch mode power supply
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34 primary coolant flow
расход теплоносителя в первом контуре ядерного реактора
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[А.С.Гольдберг. Англо-русский энергетический словарь. 2006 г.]Тематики
EN
Англо-русский словарь нормативно-технической терминологии > primary coolant flow
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35 primary pipe rupture
rupture time — время до разрыва; время образования разрыва
English-Russian dictionary on nuclear energy > primary pipe rupture
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36 primary growth
The English-Russian dictionary general scientific > primary growth
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37 first-rate
первоклассный наречие: имя прилагательное: -
38 of primary importance
первостепенной важности имя прилагательное:Англо-русский синонимический словарь > of primary importance
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39 основная скорость
Большой англо-русский и русско-английский словарь > основная скорость
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40 PRI
См. также в других словарях:
Primary rate interface — The primary rate interface (PRI) is a telecommunications standard for carrying multiple DS0 voice and data transmissions between two physical locations.All data and voice channels are ISDN and operate at 64 kbit/s.T1 vs. E1 SystemsNorth America… … Wikipedia
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primary rate interface — noun an ISDN service delivered over T1 , E1 or J1 datalines, with delivery of connections between 1472 kilobits per second and 1984 kilobits per second (kibibits) Syn: PRI … Wiktionary
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primary — / prime [adj1] best, principal capital, cardinal, chief, crackerjack*, dominant, excellent, fab*, first, first class*, greatest, heavy, highest, hot*, leading, main, number one*, paramount, primo*, state of the art*, stellar, top, top of the… … New thesaurus
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