逆流級 的英文怎麼說

中文拼音 [nìliújí]
逆流級 英文
back current step
  • 逆 : Ⅰ形容詞1 （方向相反） contrary; counter 2 [數學] inverse; converse Ⅱ動詞1 （抵觸; 不順從） go aga...
  • 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...
  • 級 : Ⅰ名詞1 （等級） level; rank; grade 2 （年級） any of the yearly divisions of a school course; gra...
  • 逆流 : anarrhea; backset; backwash; contra flow; counter flow; eddy; receding; counter current; reverse ...
  1. Continuous counterflow rinsing and on - line grading wasterwater treatment

    連續式逆流漂洗與在線分級廢水治理
  2. Counterflow sand classifier

    逆流式舊砂分級機
  3. Particle size analysis ; size analysis by air classification with centrifugal counterflow classifier

    粒度分析.用離心逆流分粒器風力分級法進行粒度分析
  4. A circuit topology of the inverter with duty cycle extended active clamp forward style high frequency pulse dc link is adopted by each independent inverter. each inverter is cascaded by a circuit with duty cycle extended active clamp forward style high frequency pulse dc link and a dc / ac inverting bridge. the control strategy of voltage mode pwm forwardback is adopted by the former, and the control strategy of three - state discrete pulse modulation ( dpm ) hystersis current is adopted by the later

    每個獨立的航空靜止變流器採用占空比擴展有源箝位正激式高頻脈沖直流環節電路拓撲，由占空比擴展有源箝位正激式高頻脈沖直流環節電路與dc ac逆變橋級聯而成，前級採用電壓型pwm前饋控制技術，后級採用三態dpm電流滯環控制技術。
  5. It is required to research a 600w 28vdc / 360vdc converter as prepositive set of static inverter in a certain project

    在某機載靜止變流器項目中，需要研製一臺600w28vdc / 360vdc直流變換器作為雙buck型逆變器的前級。
  6. The inversionless bm algorithm in rs decoder is implemented with serial mode, which avoids the inversion computation and only needs 3 finite - field multipliers. thus, the complexity of hardware implementation has been mostly reduced. a 3 - level pipe - line processing architecture is also used in the hardware and the coding circuit in rs coder is optimized by using the characteristics of the finite - field constant multiplier

    Rs解碼器的設計採用無逆bm演算法，並利用串列方式來實現，不僅避免了求逆運算，而且只需用3個有限域乘法器就可以實現，大大的降低了硬體實現的復雜度，並且因為在硬體實現上，採用了3級流水線（ pipe - line ）的處理結構。
  7. Particle size analysis ; size analysis by air classification with gravitation - counterflow elutriator

    粒度分析.用重力逆流篩分機的風力分級法進行粒度分析
  8. A novel cycloconverter - rype three - phase hf link inverter topology for soft - switching based on phase - shifted full - bridge mode is proposed, whose main advantages are as follows : under the conditions of d < i < and overlap - d, the switches of the leading leg are turned on at zvs and the switches of the lagging leg are turned off at zcs and all switches of the cycloconverter circuit are commutated in the overlapping mode in the interval of zero voltage, which makes the circuit realize soft switching to the utmost extent and reliably solve the problem of peak voltage caused by the storing energy of leakage inductance of hf transformer

    論文提出一種新型移相全橋軟開關周波變流型三相高頻鏈逆變器，電路的主要優點是：前級移相全橋的移相角控制在_ d _ i和_ （ overlap ） - _ d條件下，超前橋臂零電壓開通，滯后橋臂零電流關斷，並使周波變流器所有開關在零電壓期間重疊換相，使整機開關最大程度地實現了軟開關，並可靠解決了高頻變壓器漏感儲能引起的電壓尖峰問題。
  9. Due to the complexity of the structure and control of cycloconverter - type three - phase hf link inverter for soft - switching based on phase - shift - controlled full - bridge mode, a simple and optimized vvvf control strategy is proposed. this control strategy includes : produced pwm by space voltage vector ( svm ) and equivalent carrier frequency fe = 1 / te are introduced into the pdm control of the cycloconverter ; softened equivalent pwm wave is generated at the notches of hf voltage pulses ; the harmonious control between regulating pulse width by phase - shifted angle and regulating voltage of equivalent pwm is to minimize the harmonics content of output voltage of the inverter

    西安理工大學博士學位論文針對這種前級移相全橋軟開關周波變流型三相高頻鏈逆變器結構和控制的復雜性，提出了一種實現簡單而整體優化的vvvf控制策略:將空間電壓矢量產生p姍的方法svm和等效載波頻率fe = 1 / te引入到周波變流器的pdm控制;按高頻電壓脈沖前後沿軟化等效p翎波;用移相調節高頻脈沖寬度和等效p姍調壓協調控制逆變器輸出電壓，在滿足輸出電壓條件下使諧波最小。
  10. From the view point of the whole topologies of current mode hfl inverters, two topologies of half - bridge and push - pull current mode hfl inverters are proposed, which are composed of four power switches. hfl inverters in discontinuous current mode ( dcm ) are extended to those in continuous current mode ( ccm )

    從完善電路拓撲和降低成本的角度出發，本文提出了兩種結構的電流源高頻鏈逆變電路，它們分別是由四個功率管組成的半橋和推挽雙向電流源高頻鏈單級逆變電路，並將工作在電感電流斷續模式的逆變電路擴展到電感電流連續模式。
  11. Er fluids, as a kind of smart material, possibly be revolutionary in several areas of industry and technology due to their attractive features of rapid ( within ms order ), reversible and dramatic changes in rheologic properties upon applied electric field of kilo - voltage per millimeter order

    電流變體在外加電場作用下能在毫秒級時間內發生明顯的、可逆的流變響應，從而被認為是「有可能使諸多工業部門發生變革的一種智能材料」 ，它是材料科學和液態物理等領域的一大研究熱點和學科前沿。
  12. This paper presents a novel single phase aeronautical static inverter. a novel combining two - transistor forward converter is presented and applied in the front of three - level hysteresis current controlled inverter, and a single - phase 6kva aeronautical static inverter is developed

    本文介紹了一種新型的單相航空靜止變流器，電路通過一新穎雙管正激組合式變換器作為三態滯環控制電流型逆變器的直流輸入前級，成功研製出6kva單相航空靜止變流器。
  13. The reason causing the variations of capacitors ' voltage of three - level voltage source inverter at dc side

    引起三級電壓源逆變器直流側電容電壓變化的原因
  14. This method gets images of different resolution by inverse wavelet transformation on the client, resolves the problem of 1 / 3 increasing data, which is brought by traditional building method, because in traditional building method the relativity between layers of the pyramid s not used

    該方法在客戶端利用小波逆變換動態合成各種解析度級別的影像，與傳統方法相比解決了沒有利用金字塔各個層次數據之問的相關性帶來的約1 / 3數據增量問題，而且在網路應用中可以形成一種解析度遞增的流式數據傳輸模式，非常適合遙感數據的網路發布。
  15. The outer - loop adopting the voltage effective value feedback regulates voltage output and reduces the steady error of output voltage. the inner - loop control is inductance current feedback, which implements the stabilization of system, and limits the inductor current

    外環採用電壓有效值反饋，調節輸出電壓，內環採用電感電流瞬時值反饋，提高系統動靜態特性，並對採用該方案的級聯逆變器進行了全面分析。
  16. The constitution, interface and control principle of main circuit, rectifier control module, inverter control module, generator ' s rotor speed and rotor position measuring module, information exchange module are discussed. specially, the methods of implementing signals level match in multi - voltage system, synchronizing with pc in parameters measurement and measuring rotor speed and rotor position with high precision are explained in detail

    文中討論了主電路、整流器控制模塊、逆變器控制模塊、電機轉速和轉子位置測量模塊以及信息交換模塊的組成、介面方法和控制原理，詳細說明了系統中實現不同電壓等級間信號電平匹配的方法、系統與上位機進行同步參數測量的方法以及實現高精度電機轉速和轉子位置測量的方法。
  17. A novel modulation method for cascaded multicell inverter with separated dc sources is presented in this paper to balance the unequal power distribution among different invert cells

    摘要針對帶獨立直流源的級聯型多電平逆變器各逆變單元間應力分配不均衡提出了一種新的調制方法。
  18. The enterprise at each node in the supply chain make the production and supply decision only on the basis of information from down river node. therefore, the unreal demand information will expands gradually from down to up, which will lead to inventory amount getting larger and larger

    具體來說，供應鏈的各節點企業往往只根據來自相鄰的下游企業的需求信息進行生產和供應決策，需求信息的不真實性會沿著供應鏈逆流而上，產生逐級放大的現象。
  19. Food food oils separation washing flavors and essential oils extraction

    實現多級串聯逆流洗滌或萃取
  20. Development of contrary centrifugal ultrafine air class ifier

    逆流離心式超細空氣分級機的研製
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