近直流 的英文怎麼說

中文拼音 [jìnzhíliú]
近直流 英文
near dc
  • 近 : Ⅰ形容詞1 （空間或時間距離短） near; close 2 （接近） approaching; approximately; close to 3 （親...
  • 直 : Ⅰ形容詞1 （成直線的; 硬挺的） straight; stiff 2 （跟地面垂直的; 從上到下的; 從前到后的） erect; v...
  • 流 : Ⅰ動1 （液體移動; 流動） flow 2 （移動不定） drift; move; wander 3 （流傳; 傳播） spread 4 （向壞...
  • 直流 : direct current （dc）; constant current; steady current; continuous current; zero frequency curre...
  1. Recently, in the field of microfluidics system the drive mode of flow is a key problem, dc electroosmoticflow micropump bases on the principle of electroosmosis, which control the flow in the microchannel with electric field. recent years, it is more and more attracting people to realize it

    當前在微流控系統中液體的驅動方式是一個關鍵問題，直流電滲流微泵是基於電滲原理，利用電場控制通道中的液體流動，實現無運動部件的液體流動系統，近年越來越受到人們的重視。
  2. The extruders drived by d. c motor with a thyristro to stepless regulate. it also equipped with the over - load prtection and stoppage alsrmingsystem. the screws core and the outside of barrels are cooled by the circulation of oil, ther fuctions include vacuum venting and forced feeding

    本機採用直流電機，可近期硅無級調速，沒有過載保護和故障報警、螺桿芯部油循環恆溫、機筒油冷卻，並裝有真空排氣管裝置和定量喂料裝置。
  3. Torsional interaction exists between hvdc converters and turbine - generators, and negative electrical damping provided by hvdc may cause subsynchronous oscillation ( sso ) that can lead to turbine - generator shaft failure and electrical instability at oscillation frequencies lower than the fundamental system frequency

    高壓直流輸電（ high - voltage - direct - current - - - - hvdc ）系統與臨近同步發電機組之間存在著扭振相互作用， hvdc的電氣負阻尼作用有可能引起機組在次同步頻率范圍的扭轉振蕩。
  4. The carrier wave is modulated directly by the baseband signal at several frequency point in l band and s band. firstly, this paper clarifies the theory of i / q modulation, elaborates evm and acpl, and analyzes the effect of amplitude and phase unbalance and dc offset on evm. secondly we review the basic principle of phase locked loop and it ’ s composing parts, including the basic conception and design method of pll frequency synthesizer, especially introduce the charge pump pll frequency synthesizer in detail

    首先，在闡述i / q正交調制基本原理的基礎上，通過對誤差矢量和鄰近通道功率泄漏的詳細分析，定性、定量地討論了各種非理想電路因素（如相位不平衡、幅度不平衡、直流偏差等）對調制器性能的影響;其次，介紹了鎖相環的工作原理和基本組成部分，包括鎖相環的設計和環路濾波器的設計，特別詳述了電荷泵鎖相頻率源;第三，介紹了採用直接調制技術模擬衛星信號的射頻前端的設計;最後，對整個直接射頻調制系統進行測試，結果基本上達到了課題要求。
  5. A method based on the eigenvalue decomposition technique, known as modal analysis of multi - infeed hvdc systems

    最近，一種基於特徵值分解技術的模態分析方法，已用於交直流混合系統的電壓穩定性分析中。
  6. The names of these criminals, and of their atrocities, were still remembered in traditions of the scattered cottage and the neighbouring suburb.

    這些罪犯的姓名和暴行，在疏疏落落的農舍里以及附近的地區一直流傳至今。
  7. But high - voltage lines are already approaching the million - volt limit on insulators and the operating limits of semiconductor devices that control dc lines

    不過，高壓線路的絕緣體已經逐漸接近百萬伏特的限制，而控制直流線路的半導體裝置，也即將達到運作極限。
  8. The rising sun jumps out of folded brocade hill diecai shan, folded brocade hill, is located in the northern section of the city. it has four peaks ; at 223 m, mingyue feng is not only the highest one within this massif, but also in all of guilin. the diecai shan mountain area is rich in valuable stone carvings and buddhist sculptures from the tang and song dynasties

    疊彩主峰明月峰俯視明凈的灕江，恰似一條銀流，由遠及近直逼明月峰下朝東看，七星山像天上星星，撒落人間朝南看，象山穿山塔山斗雞山南溪山歷歷在目，各呈姿態市中心的獨秀峰伏波山，卓然獨立，高接雲天朝西看，西山隱山老人山猴山等，或近或遠，或隱或現
  9. Almost meanwhile, the north wind anomaly brings epwp warm water to equatorial vicinity by producing north ocean flow, which causes directly nino3 sst increase

    幾乎與此同時，北風距平通過產生北風吹流將東太平洋暖池暖水由北向南輸送至赤道附近直接導致nino3區海表溫度增加。
  10. The insulation and the thermal mass, coupled with the gains from the conservatory and the buffering effect of the earth sheltering provide comfortable conditions

    一個熱交換通風系統利用高效的12伏直流電扇來保證通往每個房間的氣流，而近可能地減少其熱量損失。
  11. 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損耗近30 ，空間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。
  12. High - voltage dc ( hvdc ) aeronautical power system has the advantages such as low weight, easiness to realize redundancy, uninterruptible power supply and high power density, it has been attracting more and more attentions

    高壓直流航空電源系統具有電網重量輕、易於實現冗餘與不中斷供電以及二次電源功率密度高等特點，近年來成為國內外研究的熱點。
  13. Stabilized power supplies, d. c. output ; part 5 : measurement of the magnetic component of the reactive near field

    直流輸出穩定電源.第5部分:近場磁分量測量
  14. Based on the dc diffusion model, we build a duplex diffusion layer model which is composed of inner pulse diffusion layer and outer stable diffusion layer. in inner pulse diffusion layer, the concentration of ions fluctuates with frequency of pulse current ; in outer stable diffusion layer, the transport speed of ions is almost stable all the time, the main purpose is to transport the ions from the mass to the pulse diffusion layer

    在直流電沉積的擴散理論基礎上，建立了脈沖電沉積的雙擴散層模型，靠近電極為脈沖擴散層，擴散層內金屬離子的濃度隨脈沖電流的頻率而波動;脈沖擴散層外麵包圍著一層穩態擴散層，其中離子的擴散速度在整個過程中基本是穩定的，作用是將主體溶液中的離子不斷向脈沖擴散層中補充。
  15. Thus, it is difficult to find the voltage reference for the harmonic analysis. since acem are always operated near to the synchronous speed, the frequency of the excited voltage is very low, even to zero. therefore, this is the power harmonic suppression study of a complicated power supply system, in which the about harmonic general theories and methods are all inapplicable

    現代交流勵磁電機（ acem ）採用電力電子變流器作為勵磁裝置，其勵磁電壓諧波含量豐富，難于獲得諧波分析所需的電壓基準，同時交流勵磁電機經常工作在同步轉速附近，致使勵磁電壓頻率極低甚至為直流，通常的諧波檢測方法和理論都無法適用，因而這是一種目前尚未深入探討過的復雜供用電系統電力諧波抑制問題的研究。
  16. Control circuit devices and switching elements proximity sensors, d. c. interface for proximity sensors and switching amplifiers

    鄰近傳感器和開關放大器介面用直流控制電路裝置和開關元件鄰近直流傳感器
  17. Now days, with the further improvement of dependability requires to transformer substation in electric power system, the level of on - line inspection to dc system must be strengthened to meet the request of more dependability to dc system. the content about the inspection of dc system of substation is researched in this paper, including the study of on - line inspection to storage cells and the study of earthing fault lookup. in the aspect of inspection to cells, the inspection to cells is discussed on foundation of analysing in several pieces of measuring amount to the battery

    近年來，隨著電力系統對變電站運行可靠性要求的進一步提高，為滿足大型變電站對更高可靠性直流系統的要求，就需加強對直流系統在線監測水平。本文主要討論了變電站直流系統監控方面的內容，包括了蓄電池組的在線檢測的研究和接地故障選線裝置的研究兩個方面。在蓄電池的檢測方面，在對蓄電池的幾個檢測量分析的基礎上，針對內阻的檢測做了詳細的討論，並結合原有方法的缺陷提出了自己的改進方法。
  18. These years along with the development of power - electronics technique and micro - control technique, permanent magnetic brushless dc motor is characterized by small volume, light weight, high efficiency, low noises, big stand - alone capability and reliability appeared and matured. so it is hopeful to become new generation submarine propulsion motor

    近年來隨著電力電子技術和微控制技術的迅猛發展而成熟起來的永磁無刷直流電機具有體積小、重量輕、高效低噪、單機容量大且可靠性高的特點，從而極有希望成為新一代潛艇推進電機。
  19. Firstly mathematic model of the micro cantilever structure is established by elastic mechanics analysis, during which small - displacement and large - displacement are both discussed. also the direct current exiting voltage and alternating current exciting voltage are both discussed. then we investigate the bifurcations of the conditions which have been mentioned above

    首先基於彈性力學的方法建立了微懸臂梁的動力學模型，包括微懸臂梁為精確撓度和近似撓度兩種系統，以及作用電壓為直流和交流的情況，並對各種情況進行了靜態分叉的分析。
  20. Namur low - voltage switchgear and controlgear - part 5 - 6 : control circuit devices and switching elements - dc interface for proximity sensors and switching amplifiers

    低壓開關設備和控制設備.第5 - 6部分:控制電路設備和開關元件.近接傳感器和開關放大器用直流介面
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