零動壓 的英文怎麼說

中文拼音 [língdòngyā]
零動壓 英文
zero dynamic pressure
  • 零 : Ⅰ數詞1 （零數） zero2 （數的空位） zero sign （0）; nought 3 （表示沒有數量;無） nil; nought 4 （...
  • 壓 : 壓構詞成分。
  1. If the velocity of atoms is near to zero, the light for ces will tend to confine the atoms near to nodes and antinodes. the stability depends on the magnitude of the negative slope of the light force, the depth of the potential well and the momentum diffusion coefficient. it is important to select the parameters, e. g

    如果通過激光冷卻能使原子速度降至很小甚至為零，光壓力的作用將使原子被較穩定地囚禁于激光駐波場的節點和反節點處，其穩定程度取決于該處光壓力曲線負斜率的大小、對應勢能的勢阱深度以及動量擴散系數的大小，因此，如何在實驗中合理選擇激光強度、失諧量等顯得尤為關鍵。
  2. Auto parts : fuel injection system ( valve follower, plunger piston and fuel injection needle, etc. ), power train ( gear, rolling bearing etc. ), piston parts ( packing ring, gudgeon pin etc. ), cam shaft parts ( pin, bush, oscillation beam and some hydraulic components etc. ), others ( gate lock, accouterment etc. )

    汽車零部件：燃料噴射系統（氣門挺桿） 、柱塞、噴油針等） 、動力傳動系統（齒輪、滾動軸承等） 、活塞部件（活塞環、活塞銷等） 、凸輪軸部件（銷、襯套、搖臂及部分液壓元件等）和其他部件（如門鎖、內飾等） 。
  3. The author wish this study win be used in the development of numerical control dividing lathe that can divide into groups of the size for precise measure of thickness of ompressor carboy hatch soft shim the system of pneumatic measure applied widely for component measurement in produce process in factory. the author 100kup a large number related documents over about one and half year for research and went to factory and related research institute for investigating

    並希望將這一研究結果應用於對「壓縮機缸蓋軟體墊片」厚度尺寸精密測量分組的數控分選機的研製。氣動測量系統以其測量倍率高、測量精度高、測量力小（ 0 . 05 1n ） 、對被測工件有自潔作用、測量精度保持性好、抗干擾能力強等優點而被廣泛應用於工廠生產過程中的零件檢測。
  4. This article takes the lagrange equation as the principle, establishes mathematics modeling to the inertia brake vibration when it brakes, then simulates it with matlab. this paper educed the relation equations between, which are the inertia brake ' s friction coefficient of the brake ring and the friction disk, the mean radius, the braking force, rotation inertia of the driving top and the spline shaft, spiral climbing angle of the brake ' s concave - convex helicoid, the mean effort radius of the concave - convex helicoid, elasticity coefficient of the spring, quality of the driving top and the spline shaft, rotations inertia of the brake ' s rotation part besides the driving top and the spline shaft, suppresses sleeve. provides the theory basis for the inertia brake structure optimization

    本文以拉格朗日方程為理論基礎，對慣性制動器在制動時的振動進行數學建模，然後用matlab對其進行模擬，得出了慣性制動器在制動時振動角頻率分別與制動環和摩擦片之間的摩擦系數、制動力的平均半徑、主動頂和花鍵軸的轉動慣量、慣性制動器的凹凸螺旋面的螺旋升角、凹凸螺旋面平均作用力的半徑、彈簧的彈性系數、主動頂和花鍵軸的質量、慣性制動器除主動頂和花鍵軸外其他部分的轉動慣量和、頂壓套的質量等慣性制動器各零部件的物理參數之間的關系，為慣性制動器的結構優化提供了理論依據。
  5. Adopt zero velocity full auto paper receiving mode, end to end butt paper receiving, auto double side stickup connection adhesive tape so as to avoid spoilage of die cutter and dinkey dint of overlapping paper registration

    採用零速全自動接紙方式，頭對頭對接接紙，自動雙面粘貼連接膠帶，可避免搭接接紙對印版的壓傷及對模切刀具的損壞問題。
  6. Use zero water pressure opening of valve core without any medium pressure, suitable for the sewage - draining control system of pipelines, water tank etc. containers and the automatic water falling of a drinker. this valve can be fitted with another more than 60 kinds of valve casings, resulting in a flexible installation

    採用零水壓開啟閥芯，開啟無須介質的壓力，適用於管道水箱等其他容器的排污控制系統飲水機的自動下水等，該閥另有六十余種閥體與之匹配，安裝靈活。
  7. 1 m 0. 5, the phase - shifted angle 6 is controlled in term of sine law which makes the magnitude of resonant voltage track a reference sine voltage, and the resonant voltage is rectified, filtered, inverted and then the better sine - voltage output is obtained, theoretical analysis and experimental results show that for the resistive load and inductive load, the switches of leading leg of the phase - shift - controlled circuit are always turned on at zvs, and ones of lagging leg are turned on at zvs ( < 0 ) or turned off at zcs ( ( > 0 ), moreover, all switches in the low - frequency inverter are always turned on and off at zvs, the measured circuit efficiency for rated load reaches up to 88 %

    從功率單向流動角度出發，提出了一種lcc諧振型恆頻移相單相高頻鏈逆變電路拓撲，在調制系數0 . 1 m 0 . 5情況下，控制移相角按正弦規律變化，使諧振電壓脈沖列的幅值追蹤參考正弦電壓信號，經過整流、濾波、低頻逆變，從而獲得正弦度較好的輸出電壓。理論分析和實驗結果證明對于阻性負載或阻感性負載，移相全橋具有超前橋臂零電壓開通，滯后橋臂或者零電壓開通（ _ 0 ）或者零電流關斷（ _ 0 ）的軟開關特性，而低頻逆變器的各個開關均實現零電壓條件下的開通與關斷。
  8. Punching tool parts, blocks for edm, scissor parts, circular knives, machine parts, extruding tools, tools for diecasting pulverized materials, pressure plates, sliding parts, valve parts, embossing dies, cutter disks, planer knives for machining of wood, hard metal tipped tools, rolls for cold rolling mills

    沖壓工具零件、電火花機床的滑車、剪刀的刃口、環刀、機械零件、擠壓工具、硬模鑄造研磨材料的工具、承壓板、滑動零件、閥門零件、壓花模、圓盤刀、木工中刨刀、切削硬金屬刀片、冷壓滾軸。
  9. A novel resonant pole zvt three - phase pwm inverter circuit for three - phase ac motor driving is presented. the proposed circuit has the feature of being more flexible with three inverter arms in zvt process. using only one resonant inductance, the inverter can not only reduce the power loss of inductance but also avoid possibility of unbalance in motor ' s three stator windings

    提出了一種針對三相交流電機驅動的新型諧振極零電壓過渡三相pwm逆變器電路，該電路中三個逆變橋臂的零電壓過渡更具有靈活性，僅使用一個諧振電感，既減少了電感損耗又防止了電機三相定子繞組可能存在的不平衡問題，並且諧振電感中殘余能量能夠回饋給電源；新型逆變器的輔助開關均工作在零電流開關條件下，並且控制邏輯簡單。
  10. Tips are generally not required at cafeterias where you serve yourself, or at snack bars or drugstore restaurants, although most people lerve some small change under their plates

    在自己動手的自助餐館里，一般無需給小費。在快餐店和藥房附設的餐館里也不必付小費，不過大多數人仍然把一些零錢壓在他們的盤子下面。
  11. The zero - voltage - switching ( zvs ) pwm hybrid full - bridge three - level ( h - fb tl ) converter can operate in both three - level mode and two - level mode, the output rectified voltage is close to the output voltage over the entire input voltage range, thus the output filter can be reduced significantly, leading to high power density and fast dynamic response. so the zvs pwm h - fb tl converter is very attractive for the applications such as fuel cells, photovoltaic cells, and telecom power supplies, where the voltage varies in a wide range

    零電壓開關復合式全橋三電平（ zero - voltage - switchingpwmhybridfull - bridgethree - level ， zvspwmh - fbtl ）變換器可以工作在三電平模式和兩電平模式，在很寬的輸入電壓范圍內，輸出整流電壓都接近輸出電壓，從而可以減小輸出濾波器，因此可以提高變換器的功率密度和改善動態性能。
  12. It is shown that closed loop circuit feedback control and open loop control are separated during the zero - power start up process. the self - starting of the medium frequency converter is achieved

    論文分析了通過plc對感應加熱進行閉環控制的控制策略，並採用了閉環開環分離的方法，解決零電壓啟動問題。
  13. It emphases the selection of secondary voltage of the step - down transformer, the control and protection of thyristor, the calculation of compensation capability and group capability, the technique of cross - zero switched on / off capacitors or reactor, the solution of avoiding possible resonance in switching on / off groups of capacitors or reactor and the measure of the best time to switch ( including the design of the computer survey and control system, instrument deliver system, delay operate and protect system ). although thyristor as a no - contact switch can avoid almost the problem of contact switch with contact, it can not solve the over - voltage, over - current and transient process itself as switching on / off capacitors or reactor. so we must develop a set of thyristor - switched control and protect system with great reliability so that it can realize of cross - zero switching on / off capacitors or reactor at any time

    晶閘管具有過零、動作快速的特點，本研究以晶閘管為電容器和電抗器的分組投切開關，重點研究了協調變壓器二次電壓的選擇、晶閘管觸發控制及保護、動態補償容量及分組容量的計算確定、過零投切電容器和電抗器技術的實現、以及分組投切電容器和電抗器可能發生諧振的處理計算方法，給出實現最佳補償投切選擇方法（測控系統、儀表變送系統、操作和保護系統的設計步驟） ，研製了一套高可靠性晶閘管觸發控制及保護系統，實現對無功的靜止可調補償。
  14. An approximate analysis of medium frequency parallel converter used in power supply controlled by microcomputer is presented in this work. the proposed approach may be applied to converters whose industrial applications are induction heating and metal melting installations. it is shown that closed loop circuit feedback control and opened loop circuit control are separated during the zero - power start - up process

    通過閱讀資料和文獻，在對中頻感應加熱及其相關技術的發展、現狀和趨勢作了一個比較全面而深刻的研究基礎上，論文分析了並聯感應加熱電源閉環控制的控制策略，並採用閉環開環分離的方法，解決了零電壓啟動問題；設計了中頻感應加熱電源的微機控制系統。
  15. Traditional direct torque control uses two value torque regulator which makes zero voltage vector work long and make flux shape bad seriously and makes response time long when the speed of induction motor is very low or drops down quickly. in order to solve this problem the thesis puts forward a new way to use three - value torque regulator, when the motor speed is very low or drops down quickly, the contrary voltage vector is used instead of zero voltage vector and the between the stator flux and rotor flux is reduced quickly so that torque is reduced quickly and response time becomes shorter

    為此，本論文提出三點式轉矩調節，這樣當電機低速運轉或給定轉速突降時，不是加零電壓矢量，而是加反方向的電壓矢量，使定子磁鏈與轉子磁鏈之間的夾角迅速減小，從而使電磁轉矩也迅速減小，大大減小了調速時間，同時磁鏈值仍然保持基本恆定，輸出比較穩定的電磁轉矩，這在電機制動過程中非常有用。
  16. The realization of shift - phase pwm control with zero - voltage and high speed, large power drive circuit is emphatically solved

    重點解決了零電壓開關的移相pwm控制策略的實現、高速大功率驅動電路的實現等幾個難點問題。
  17. Pr - 4000 four shafts series fully automatic cleaning metal parts ultrasound systems, mainly for the electrical, automotive pressure sensors, aluminium, iron, copper die - casting pieces, ductile iron disc, gangti, interior, piston ring, hydraulic parts, compressor parts, etc. mechanical hardware components, production processes or processing terminals cleansing

    四槽系列全自動金屬零件超聲波清洗系統，主要用於電機汽車增壓器鋁鐵銅壓鑄件，球墨鑄鐵件缸體殼體活塞環液壓零件壓縮機零件等等機械五金零件，生產加工過程工序間或終端的清洗。
  18. On the detailed analysis of pmsm dtc principle, the function of zero voltage vector and the choice method of voltage vector in ev driving are proposed. restricted condition about stator flux linkage under dtc is analyzed

    在詳細分析dtc應用於pmsm的基本原理基礎上，研究了零電壓矢量在pmsmdtc中的作用並提出電動汽車用pmsm電壓空間矢量的選擇方法。
  19. The parts and units of jigs and fixtures. moving clamp plate

    機床夾具零件及部件.移動壓塊
  20. The list betterments aimed at the properties of system : through the testing of dc voltage, pulse width and inverting voltage and frequency can be regulated online to fit for different steady load ; reducing speed ripples by compensating with nonzero voltage working proportional time ; adopting the technology of harmonics suppression. as a result, the high precision and wide speed control is realized and the step out is overcome

    針對系統的性能指標，做了如下改進：對直流側電壓的檢測，在線調整逆變器導通脈寬、輸出電壓和頻率，可以適應不同大小的恆負載；並用非零電壓矢量作用時間進行補償的方法，減小電機的低速脈動；加入了諧波抑制技術等。
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