空間損耗 的英文怎麼說

中文拼音 [kōngjiānsǔnhào]
空間損耗 英文
space loss
  • : 空Ⅰ形容詞(不包含什麼; 裏面沒有東西或沒有內容; 不切實際的) empty; hollow; void Ⅱ名詞1 (天空) s...
  • : 間Ⅰ名詞1 (中間) between; among 2 (一定的空間或時間里) with a definite time or space 3 (一間...
  • : Ⅰ動詞1 (減少) decrease; lose 2 (損害) harm; damage 3 [方言] (用尖刻的話挖苦人) speak sarcas...
  • : Ⅰ動1 (減損; 消耗) consume; cost 2 [方言] (拖延) waste time; dawdle Ⅱ名詞1 (壞的音信或消息) ...
  • 空間 : space; enclosure; room; blank; interspace
  • 損耗 : 1. (損失消耗) loss; wear and tear; deterioration; waste 2. [商業] wastage; spoilage
  1. Article 29 during the period of financing lease, the lessor shall ensure the lessee to possess and use the civil aircraft without interference ; the lessee shall take proper care of the civil aircraft and keep it in the condition in which it was delivered, subject to fair wear and tear and to any modification of the civil aircraft agreed by the lessor

    第二十九條融資租賃期,出租人不得干擾承租人依法佔有、使用民用航器;承租人應當適當地保管民用航器,使之處于原交付時的狀態,但是合理和經出租人同意的對民用航器的改變除外。
  2. An algorithm based on the inner structural feature of the 8 - bit single chip microprocessor is presented to perform the space vector modulation, it is high efficiency in voltage - utilizing, low harmonic losses, fast in calculation speed, simple in over - modulation method, high ratio of capability to price

    介紹一種用8位專用單片機內部結構特徵而設計的矢量調制演算法,不但具有電壓利用率高、諧波小等優點,還具有計算速度快、過調制處理方法簡潔、性能價格比高等優點。
  3. The study of reliability optimum design of self - energizing overrunning spring clutch is raised to meet the following requirement : smaller size, less producing heat and overrunning friction loss in opposite direction. it is important investigating substance in the field to all the country in the world. it is application of modern advanced design method in engineering practice

    自激式超越彈簧離合器可靠性優化設計的研究,是針對超越式離合器要求尺寸小、溫升小、反向超越時摩擦小而提出的,這也是世界各國在該領域中的重要研究內容,是現代先進設計方法在工程實際中的具體應用。
  4. The removal of the iron teeth in the armature leaves more room for armature copper, which lowers the losses and improves machine efficiency

    在電樞中去除鐵刷將會給銅電樞留下更多的,從而降低,提高機械效率。
  5. Based on the investigation with several voltage control methods, such as venturini method, instantaneous double - voltage synthesis method and space vector modulation method ( svm ), three new control strategies are put forward. firstly, a time - varying modulation coefficient svm method is proposed to improve mc ' s anti - disturbance performance under the asymmetry input voltage. secondly, a 5 - state switching strategy is presented for mc controlled by the svm method, which reduces the commutation number and switching losses remarkably

    在分析了venturini控製法、瞬時雙電壓法、矢量法等電壓控制方法的基礎上,提出了在非對稱輸入條件下矩陣變換器矢量法的時變調制比改進控制策略,提高了變換器的抗干擾性能;對矢量法的開關策略進行了研究,提出了新型5狀態開關策略,在保證其他性能不受影響的條件下,減少了變換器的換流次數和開關;提出了一種矩陣變換器單電壓合成的新方法,它不僅使得變換器的控制簡單,計算量減少,而且使得開關達到最少。
  6. The theoretical analysis and result of simulation indicate that the two - phase modulation reduces the switching losses 50 % relative to the quasi - optimum and the space vector modulation and overmodulation can generate higher voltages with low total harmonic distortion

    分析表明二相調制方法相對于準優化方法減少開關近30 ,矢量的調制與過調制可以大大的提高直流母線電壓的利用率。
  7. Switching losses analysis indicates that the switching losses can be extremely reduced with different load qualities by choosing proper phase - voltage modulation method. the method of minimum switching losses svm is investigated. the modulation functions of a quasi - optimum method and a two - phase modulation method are given

    本文深入研究了一種基於電壓矢量的最小開關pwm技術,給出了準優化方法和二相優化方法的相電壓調制函數,並在理論分析的基礎上,通過模擬實驗,對兩種減少開關的方法和調制與過調制進行了分析。
  8. 3 ) < wp = 12 > using perturbation analysis, the space - correlation loss and the bearing - estimated error for finite - bandwidth incoherently distributed sources are evaluated analytically, respectively. it is disclosed that bandwidth - induced bearing bias increases monotonously with the signal ' s relative bandwidth. when the relative bandwidth is not small enough to be negligible, the spatially - only processing cannot lead to accurate bearing estimate, that is, the joint space and time processing is necessary for high - precision bearing estimation

    3 )利用擾動分析方法,解析評價了有限帶寬引起的非相干分佈源的空間損耗及其對波達方向估計的影響;分析表明,帶寬擾動引起的方向估計偏差隨信號相對帶寬單調增加;當相對帶寬無法忽略時,為了得到高精度的波達方向估計,需要進行聯合時處理。
  9. So it save much energy consumption of the air conditioning running. but the preliminary investment of the psd system is higher. in the feasibility researching phase of the subway environmental control item, it is essential to do the technoeconomics analysis and forecast of the psd system

    站臺屏蔽門系統在我國還是一種新型的地鐵環境控制系統,它將地鐵車站站臺與列車運行隔開,避免了冷量失,節省了大量調運行能,但站臺屏蔽門系統初投資較高,因此在地鐵環控項目的可行性研究階段,進行站臺屏蔽門系統的技術經濟分析與預測非常必要。
  10. On - line monitoring of hvcb is the precondition of predicting maintenance, is the key element of reliable run, and is the important supplement to the traditional off - line preventive maintenance in fact, the faults are made by hvcb, no matter in number or in times, is over 60 % of total faults so it has determinative importance for improving the reliability of power supply and this can greatly decrease the capital waste used by - dating overhaul in this paper, the inspecting way of hvcb mechanism characteristic is discussed the concept of sub - circuit protector is presented, the scheme that we offered has been combined with sub - circuit integrality monitoring theory, to ensure that it has the two functions as a whole according the shut - off times at rated short circuit given by hvcb manufacturer, the electricity longevity loss can be calculated in each operation, and the remained longevity can be forecast too an indirect way for calculating main touch ' s temperature by using breaker shell temperature, air circumference temperature and breaker ' s heat resistance is improved in this paper, and main touch resistance can be calculated if providing the load current msp430, a new single chip microcomputer made by ti company, is engaged to develop the hardware system of the on - line monitoring device, and special problem brought by the lower supply voltage range of this chip is considered fully

    高壓斷路器所造成的事故無論是在次數,還是在事故所造成的停電時上都占據總量60以上。因此,及時了解斷路器的工作狀態對提高供電可靠性有決定性意義;並可以大大減少盲目定期檢修帶來的資金浪費。本文論述了斷路器機械特性參數監測方法;提出了二次迴路保護器的概念,並將跳、合閘線圈完整性監視和二次迴路保護結合起來,給出具有完整性監視功能的二次迴路保護器實現方案;根據斷路器生產廠家提供的斷路器額定短路電流分斷次數,計算每次分閘對應的觸頭電壽命,預測觸頭電壽命;提出根據斷路器殼體溫度和斷路器周圍氣溫度結合斷路器熱阻來計算斷路器主觸頭穩態溫升的方法,並根據此時的負荷電流接計算主觸頭迴路的電阻;在硬體電路設計上,採用美國ti公司最新推出的一種功能強大的單片機msp430 ,並充分考慮該晶元的適用電壓范圍給設計帶來的特殊問題;在通信模塊的設計中,解決了不同工作電壓晶元之的介面問題,並給出了直接聯接的接線方案。
  11. People can easily design the hysteresis current control hardware circuit, but the switching frequency is variable which makes us difficult the design the output filter, moreover the output waveform is not good. the space vector modulation techniques, by selecting the zero vector properly, it can reduce the harmonic content of the output voltage, so it has become a popular control method

    滯環電流控制的硬體電路設計簡單,但存在開關頻率不固定,輸出濾波器設計困難,輸出波形質量差,矢量控制( svm )技術具有較高的電壓利用率,且通過對零矢量的合理控制可以降低諧波含量或降低開關,因此是一種較好的控制方法。
  12. Two models were given to analyze the characteristics of distributed spatial filtering of bend multimode fiber and the multimode fiber amplifier in this paper

    本論文主要工作是提出了用於分析彎曲多模光纖的濾波特性的理論模型和存在彎曲時的光纖放大器等效模型。
  13. The inverters based on space - vector pwm technique have many good qualities, such as less pulsating torque, higher usage of dc bus voltage, less switching loss, better high - speed regulation performance, so it is applicable for the high - performance motor control system

    電壓矢量pwm技術( svpwm )將逆變器和電動機視為一體,由之控制的變頻器具有輸出轉矩脈動量低、直流電壓利用率高、開關小、高速調速性能好等優點,適用於高性能電機調速控制系統。
  14. Based on the rate - equation theory of four - level system, the expressions of threshold pump power, output power and slope efficiency are given. the influence of space distribution of pump light ( the position of focusing point, dimension of pumping light and divergence angle ) to the output characteristics are also discussed. then, by investigating the effects of thermal effect of laser crystal on the size of laser cavity mode, we obtain the mode - matching principle of high power laser diode end - pumped solid - state lasers

    其中,在泵浦光的分佈變量中我們分別考慮了泵浦光聚焦后的腰斑大小、聚焦腰斑在增益介質中的位置以及泵浦光在介質中發散角的影響;然後我們研究了在高泵浦功率下激光晶體因吸收泵浦光而產生的熱效應所導致的熱透鏡效應以及熱致衍射,通過分析它們對振蕩激光腔模尺寸的影響,得到了高功率半導體激光二極體端面泵浦固體激光器模式匹配的要求,為高功率連續單頻nd : yvo _ 4激光器的優化設計提供了理論依據。
  15. When the motorcycle is braking or slowing down, the kinetic and / or potential energy is fed back to the battery, so the running distance can be extended and the energy efficiency is improved. an asynchronous motor is employed in this new system which can overcome the traditional dc drive system bugs and to reduce the cost and maintenance. in addition, the switches of dc / dc converter switch under zero current and zero voltage conditions, which can also reduce the switch losses, electro magnetic interference ( emi ) and prolong its life

    該系統在功能上實現了車輛剎車減速或下坡制動時能量的回饋,達到節能、提高能量使用效率和增加車輛行駛距離的目的;採用交流異步電機,克服了傳統直流驅動系統的諸多缺陷,降低了成本,減少了維護;採用zczvs技術,降低了電磁干擾和,提高了效率;另外,在逆變主電路中採用ipm模塊,簡化了系統結構,節約了,提高了整個系統的可靠性和經濟性。
  16. The space - charge theory of dawber and scott was modified, and here in the modified model, the depletion width was not a constant

    接著參考dawber和scott的電荷理論,加入對寬度的修正,擬合出鐵電薄膜的電載荷加載疲勞模型。
  17. Based on the nonlinear paraxial equation and b - t theory, a differential equation, which describes the small - scale self - focusing in gain ( loss ) media has been derived. the change rule of the maximal gain frequency, cutoff frequency and integral exponential gain have been analyzed approximately

    我們首先從非線性近軸波方程出發,基於b - t理論的思想,在考慮了介質的增益()特性的情況下,推導得出了小尺度自聚焦所滿足的微分方程,並通過近似方法分析了最大增長頻率、截止頻率及積分指數增益等的變化規律。
  18. Applying an exact modal propagation analysis method and self - imaging theory, i analyzed the principle of mmi coupler. then, the self - imaging effect in graded - index waveguide has been analyzed and simulated using three - dimensional bpm. considering normal technology error, a low loss y - branch structure ( symmetric or asymmetric ) with a multimode waveguide transition section is introduced and designed

    在設計y分支波導結構時,考慮常規工藝誤差的影響,引入多模波導作為y分支波導結構的過渡區,利用參數搜索法來設計結構參數,實現低的y分支結構。
  19. Results from this investigation show that the loss generation within the coolant holes is substantial and that ejection into regions of low static pressure increases the loss per unit coolant mass flow. the results also reveal strong interactions between endwall coolant ejection and secondary flow in the blade passage. the secondary flow has a strong influence on coolant trajectories and coolant ejection delays the three - dimensional separation of the inlet boundary layer on the endwall, chang the secondary flow and reduces its associated losses

    本文的研究成果顯示,冷卻孔內產生的失是主要的,並且低靜壓區域的冷氣噴射會增加單位冷氣質量流的消;噴射的冷氣與葉柵端壁流場之有強烈的相互作用;二次流對冷卻氣的流動軌跡有較強的影響;冷氣噴射能延緩端壁入口邊界層的三維分離、改變二次流從而減少其相關
  20. Active magnetic bearing ( amb ) is a kind of novel high - performance bearing, in which rotor can be suspended by magnetic force. because of the contact - free property between the rotor and stator, the rotor can rotate at very high speed, and amb has the advantage of long lifetime, low power loss, low noise almost no wear and no lubrication. thus amb has great advantages over conventional bearing in many application fields

    =主動磁懸浮軸承是利用磁力將轉子懸浮於的一種新型高性能軸承,由於轉子于定子之不存在機械接觸,轉子可以達到很高的轉速,幾乎沒有磨,壽命長,能低,噪聲小,無需潤滑,在很多應用領域內與傳統軸承相比存在明顯的優越性。
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