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21 спектр
* * *спектр м.
spectrumабсорбцио́нный спектр — absorption spectrumакусти́ческий спектр — acoustic spectrumамплиту́дный спектр — amplitude spectrumамплиту́дный спектр и́мпульсов — pulse-height spectrumвраща́тельный спектр — rotational spectrumспектр высо́кого разреше́ния — fine spectrumспектр де́йствия антибио́тика — antibiotic spectrumдинами́ческий спектр — dynamic spectrumдискре́тный спектр — discrete [line]дифракцио́нный спектр — diffraction [gratting] spectrumспектр до́плеровских часто́т — Doppler spectrumспектр зву́ка — acoustical spectrumинтерференцио́нный спектр — interference spectrumискажё́нный спектр — distorted spectrumспектр испуска́ния — emission spectrumспектр колеба́ний — vibration spectrumспектр комбинацио́нного рассе́яния — Raman spectrumлине́йчатый спектр — line [discrete] spectrumспектр ли́ний возмуще́ния аргд. — Mach-line patternспектр обтека́ния арго. — flow patternопти́ческий спектр — optical spectrumспектр поглоще́ния — absorption spectrumполоса́тый спектр — band spectrumспектр пропуска́ния — transmission spectrumравноэнергети́ческий спектр — equal-energy [equienergy] spectrumрадиочасто́тный спектр — radio(-frequency) spectrumспектр сверхто́нкого расщепле́ния — hyperfine spectrumспектр скоросте́й — velocity spectrum, velocity distributionсло́жный спектр — complex spectrumсо́лнечный спектр — solar spectrumсплошно́й спектр — continuous spectrumспектр сравне́ния — comparison [standard] spectrumуда́рный спектр ( в ударном движении) — shock spectrumуда́рный спектр последе́йствия — residual shock spectrumуда́рный, теку́щий спектр — initial shock spectrumхарактеристи́ческий спектр — characteristic spectrumспектр часто́т — frequency spectrumперемеща́ть спектр часто́т из … в … — translate the frequency spectrum from … to …трансформи́ровать [переноси́ть] спектр часто́т — shift [translate] the frequency spectrumспектр часто́т, разгово́рный — voice frequency spectrumспектр шумо́в — noise spectrumэмиссио́нный спектр — emission spectrumспектр эне́ргий — energy spectrum, energy distributionя́дерный спектр — nuclear spectrumспектр я́дер отда́чи — recoil spectrum -
22 классифицировать
•Organic compounds may be categorized according to certain arrangements of atoms.
•Chloramphenicol is classed as an antibiotic.
•Acedobacter suboxydans is classified among the vinegar bacteria.
•This error may be classified as a deformation error.
•Fluid flow may be classified under two types, laminar and turbulent.
•It is impossible to categorize . histolytica as either a parasitic or as a commensal organism since it may be either.
* * *Классифицировать(ся) -- to be classified, to be categorized; to sort out (путем выявления, отбора); to be ranked (по качеству); to be rationalized (приводить в систему); to be listed (с указанием перечня)Rotor balancing procedures are classified according to the type of rotor for which they are designed, rigid or flexible.Mechanical printing devices may be categorized from several points of view.The true results surfaced only through more detailed studies that sort out the influence of various competing factors.The coals were ranked solely on the basis of iron content.Классифицировать какEach of the records can be categorized as steep.These techniques can be listed as capacitive, inductive, and optical.All other states were classified as non-flotation.Классифицировать по-- A complex spectrum of material behavior is observed but is rationalized in the present paper by its effect on the subsequent precipitation.Русско-английский научно-технический словарь переводчика > классифицировать
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23 наблюдаемый
•Benzedrine produces effects similar to those seen (or observed) when the sympathetic nervous system is activated.
* * *Наблюдаемый-- A more detailed accounting of the local fluid velocities would be instrumental in gaining an understanding of the rather complex flow observed in these experiments.Русско-английский научно-технический словарь переводчика > наблюдаемый
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24 как будет показано ниже
Как будет показано нижеAs will be shown later, cup cooling can be used to decrease the high cup temperature.As will be demonstrated later, the pattern of fluid flow adjacent to the free end is much more complex.As discussed in the forthcoming, these studies have not addressed all possible variations in the parameters affecting crack extension.Русско-английский научно-технический словарь переводчика > как будет показано ниже
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25 каким бы ни был он
Каким бы ни был он (сложным)-- This extension is able to solve for the flow within any bearing geometry, however complex.Русско-английский научно-технический словарь переводчика > каким бы ни был он
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26 находиться на пределе своих возможностей
Находиться на пределе своих возможностей-- But, because the flow in a turbomachine is complex, these methods are reaching the limit of their usefulness.Русско-английский научно-технический словарь переводчика > находиться на пределе своих возможностей
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27 несмотря
Несмотря на - in spite of, despite, notwithstanding, although... are involved; with, for, though, even with, even thoughThis eight-parameter problem is immensely complex, in spite of the assumptions made regarding the pyrolysis kinetics.Despite this change, equation (...) remains unaltered.The toughness of the Cr-Mo-V steels in current use, notwithstanding the improved cleanliness achieved over the last two decades, is still poor.Because of the relatively high temperature in the system, the gases were accounted for as ideal, although very high pressures are involved.Even with these simplifications, one finds...Несмотря на то, что - in spite of the fact that, even though, whereasIn spite of the fact that the groundwood mechanical pulping process is over 130 years old, there is limited knowledge on many aspects of this process.Even though low valves of l lead to order of magnitude reductions of life, satisfactory bearing life has been achieved in many devices in the field.The comparison is reasonably good even though the predictions deviate somewhat from the measurements at about 25 ms.Whereas the development of flow along the inner wall is almost the same, with the spoiler fitted, the growth of the shape parameter on the outer wall is reduced substantially.Русско-английский научно-технический словарь переводчика > несмотря
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28 но можно добиться значительного упрощения, если
Но можно добиться значительного упрощения, если-- Any rigorous analysis will be complex but a major simplification results if isothermal gas flow can be assumed.Русско-английский научно-технический словарь переводчика > но можно добиться значительного упрощения, если
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29 последствие
Последствие - consequence, ramification, effect, impactThis result was consistent with his summary of the primary consequences of synchronized shedding.The aforementioned practical ramifications of blockage are related to the complex fluid flow processes that are induced by the presence of the blockage.This pattern indicates that the effects of an increase in lift on the airfoil can be detected in the wake structure prior to stall.The discovery in 1968 that oxygen combined with Cs produces a lower work function on GaAs than does Cs alone has had at least two major impacts.Русско-английский научно-технический словарь переводчика > последствие
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30 практически невозможен
Практически невозможенFlow visualization was not practicable at this clearance ratio.The impact of the many engine transient operating variables on the starting of small gas turbines is complex, thus accurate prediction is virtually impossible.Русско-английский научно-технический словарь переводчика > практически невозможен
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31 сильная зависимость от
Сильная зависимость от (формы)-- The complex nature of the flow field underneath the aircraft and its strong configuration dependence make it impossible to adequately cover either hot gas ingestion or suckdown in the predesign phase.Русско-английский научно-технический словарь переводчика > сильная зависимость от
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32 способствовать достижению
Способствовать достижениюThe real-time display developed for the anemometer is helpful in achieving efficient operation.Finally, a more detailed accounting of the local fluid velocities within the enclosure would be instrumental in gaining an understanding of the rather complex flow observed in these experiments.Русско-английский научно-технический словарь переводчика > способствовать достижению
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33 фактически
Фактически - in fact; actually (в действительности - часто при противопоставлении); virtually, to all intents and purposes (практически), indeed (более того)In fact, there exist no valid correlations for flow through a porous material having a complex microstructure such as those used for transpiration cooling.There are, in fact, two such plenums - a large one to accommodate larger jet array plates, and a smaller box for the smaller arrays.The method of analysis one chooses has virtually no effect on the third group of iterations.Problems such as pressure sensors being prone to inlet surge damage have been to all intents and purposes designed out.The edge of the upper oscillating plate was not intermittently exposed to atmosphere. Indeed it remained submersed throughout the oscillatory motion.Русско-английский научно-технический словарь переводчика > фактически
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34 регулирование расхода
Propellant-loading fittings. Various devices used in a launch complex and designed for flow control of rocket propellants…Русско-английский словарь по космонавтике > регулирование расхода
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35 схемный анализатор
1. circuit analyzer2. network analyzerимпульсный анализатор; анализатор импульсов — pulse analyzer
3. network calculatorРусско-английский большой базовый словарь > схемный анализатор
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36 длительный допустимый ток
(длительный) допустимый ток
Максимальное значение электрического тока, который может протекать длительно по проводнику, устройству или аппарату при определенных условиях без превышения определенного значения их температуры в установившемся режиме
[ ГОСТ Р МЭК 60050-826-2009]
Этот ток обозначают IZ
[ ГОСТ Р 50571. 1-2009 ( МЭК 60364-1: 2005)]EN
(continuous) current-carrying capacity
ampacity (US)
maximum value of electric current which can be carried continuously by a conductor, a device or an apparatus, under specified conditions without its steady-state temperature exceeding a specified value
[IEV number 826-11-13]
ampacity
The current in amperes that a conductor can carry continuously under the conditions of use without exceeding its temperature rating.
[National Electrical Cod]FR
courant (permanent) admissible, m
valeur maximale du courant électrique qui peut parcourir en permanence, un conducteur, un dispositif ou un appareil, sans que sa température de régime permanent, dans des conditions données, soit supérieure à la valeur spécifiée
[IEV number 826-11-13]Ampacity, the term is defined as the maximum amount of current a cable can carry before sustaining immediate or progressive deterioration. Also described as current rating or current-carrying capacity, is the RMS electric current which a device can continuously carry while remaining within its temperature rating. The ampacity of a cable depends on:
- its insulation temperature rating;
- conductor electrical properties for current;
- frequency, in the case of alternating currents;
- ability to dissipate heat, which depends on cable geometry and its surroundings;
- ambient temperature.
Electric wires have some resistance, and electric current flowing through them causes voltage drop and power dissipation, which heats the cable. Copper or aluminum can conduct a large amount of current before melting, but long before the conductors melt, their insulation would be damaged by the heat.
The ampacity for a power cable is thus based on physical and electrical properties of the material & construction of the conductor and of its insulation, ambient temperature, and environmental conditions adjacent to the cable. Having a large overall surface area may dissipate heat well if the environment can absorb the heat.
In a long run of cable, different conditions govern, and installation regulations normally specify that the most severe condition along the run governs the cable's rating. Cables run in wet or oily locations may carry a lower temperature rating than in a dry installation. Derating is necessary for multiple circuits in close proximity. When multiple cables are near, each contributes heat to the others and diminishes the amount of cooling air that can flow past the individual cables. The overall ampacity of the insulated conductors in a bundle of more than 3 must be derated, whether in a raceway or cable. Usually the de-rating factor is tabulated in a nation's wiring regulations.
Depending on the type of insulating material, common maximum allowable temperatures at the surface of the conductor are 60, 75 and 90 degrees Celsius, often with an ambient air temperature of 30°C. In the U.S., 105°C is allowed with ambient of 40°C, for larger power cables, especially those operating at more than 2 kV. Likewise, specific insulations are rated 150, 200 or 250°C.
The allowed current in cables generally needs to be decreased (derated) when the cable is covered with fireproofing material.
For example, the United States National Electric Code, Table 310-16, specifies that up to three 8 AWG copper wires having a common insulating material (THWN) in a raceway, cable, or direct burial has an ampacity of 50 A when the ambient air is 30°C, the conductor surface temperature allowed to be 75°C. A single insulated conductor in air has 70 A rating.
Ampacity rating is normally for continuous current, and short periods of overcurrent occur without harm in most cabling systems. The acceptable magnitude and duration of overcurrent is a more complex topic than ampacity.
When designing an electrical system, one will normally need to know the current rating for the following:- Wires
- Printed Circuit Board traces, where included
- Fuses
- Circuit breakers
- All or nearly all components used
Some devices are limited by power rating, and when this power rating occurs below their current limit, it is not necessary to know the current limit to design a system. A common example of this is lightbulb holders.
[http://en.wikipedia.org/wiki/Ampacity]
Тематики
- электротехника, основные понятия
Синонимы
EN
DE
- Dauerstrombelastbarkeit, f
- Strombelastbarkeit, f
FR
- courant admissible, m
- courant permanent admissible, m
Русско-английский словарь нормативно-технической терминологии > длительный допустимый ток
- 1
- 2
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