端柵 的英文怎麼說
中文拼音 [duānzhà]
端柵
英文
tip fence-
The transverse sensitivity was due primarily to the end loops in the grid pattern.
橫向靈敏度主要來源於柵端部轉彎處。Application of endwall boundary layer suction in the stator cascade of steam turbine governing stage
端壁邊界層抽吸技術在汽輪機調節級靜葉柵中的應用Understanding the three - dimensional nature of these flows and understanding the interactions between the ejected coolant and the endwall flow are the key to a successful endwall film - cooling design. results from this investigation enhance this understanding
揭示流場的三維特性以及噴射的冷空氣與端壁附近的外流場相互作用規律是渦輪葉柵端壁氣膜冷卻設計成功的關鍵,本文的研究成果增加了對此規律的更深入了解。One cooling method that has gained increasing importance is endwall film - cooling, where coolant air is discharged though discrete holes in the inner and outer endwalls of a turbine blade passage. after leaving the holes, the coolant forms a protective layer between the hot mainstream gas and the surface that is to be protected
目前廣泛採用的一種重要冷卻方法是渦輪葉柵端壁氣膜冷卻,該方法中冷空氣穿過渦輪葉片上內外端壁離散冷卻孔進行交換,且冷空氣流經冷卻孔后在主流熱空氣與被保護表面之間形成保護層。During the circuit design, the author analyzed the basic principle of the direct current motor, pwm control, h - bridge power driver, and two control techniques of h - bridge power drive circuit, designed its general structure, so the feasibility of the design is confirmed. then, reference, oscillator, power dmos gate drive circuit ( charge pump, bootstrap ), and dead time generation circuit are designed and analyzed in the sub - circuits. a current - controlled oscillator is presented in this thesis
在電路設計中,作者介紹了直流電機的工作原理和數學模型、脈寬調制( pwm )控制原理、 h橋電路基本原理和h橋功率驅動電路的兩種控制模式,設計了驅動電路的總體結構,給出了電路的功能模塊,確定了設計的可行性,然後在子電路模塊中,重點分析設計了基準源電路、振蕩器電路、高端功率管柵驅動電路(電荷泵及自舉電路) 、低端功率管柵驅動電路和死區時間產生電路。It is shown that neglecting the gate - drain capacitance of the mosfet would lead to an overestimation of the optimum device width in the cmos source degenerated lna
本文證明了在cmos源端degeneration結構的低噪聲放大器中,忽略場效應管的柵漏電容將造成對放大管的最優柵寬估計過大。The low insertion loss is achieved by optimizing the transistor widths and bias voltages, by minimizing the substrate resistances, and by dc biasing the transmit and receive nodes, which decreases the capacitances while increasing the p1db
通過優化mosfet的柵寬及偏置電壓可以降低插入損耗。在版圖設計中通過增加襯底接觸降低襯底電阻,從而減小插入損耗。另外,為接收和發送端提供直流偏置可以降低p1db 。The client uses the scheme based on browser and java applete together. the map display mode uses the scheme based on vector map and grid map. thus the better combination of functions with load can be gained through respective strongpoints
客戶端採用了基於瀏覽器和java小應用程序的結合方案,而地圖的顯示方式也採用結合矢量圖和柵格圖的方案,這樣可以利用各自的優點來達到更好的功能負載結合點。Scan blind spot analysis of a triangular arrangement of waveguide end - slot finite phased arrays
三角形柵格波導端頭有限縫隙相控陣的掃描盲區分析I stole round by the eastern end, keeping close in shadow, and at a convenient place, where the darkness was thickest, crossed the palisade
我偷偷地繞到東端,盡可能躲在陰暗處,選擇一塊最暗的地方翻過柵欄。After three minutes or so they found themselves in front of a second gate. through this a wide lawn was visible, over which two venerable oaks cast dark masses of shadow. three minutes farther on yet another gate afforded them an extensive view of a great avenue, a perfect corridor of shadow, at the end of which a bright spot of sunlight gleamed like a star
三分鐘后,他們到達了另一道柵欄門前透過柵欄門,看見裏面有一大片草地,草地上有兩棵百年橡樹,樹下形成兩大塊蔭影又走了三分鐘,第三道柵欄門展現在他們眼前,裏面有一條望不到頭的林蔭道,像是一條黑? ?的走廊,在走廊的一端,太陽灑下耀眼的光點。The distribution of adiabatic film - cooling effectiveness on the endwall of this cascade has been measured using a new technique that has been developed as part of this project. using this new technique, the achieved levels of cooling effectiveness are quantified and over, and under - cooled regions on the endwall are identified
在發展一種新的測試技術的基礎上,結合葉柵下游流場測量,獲得了葉柵端壁上冷卻膜隔熱效率的分佈,使得葉柵端壁上下冷卻層的冷卻效率可分別定量描述。At present, bga / csp is becoming the mainstream of the advanced ic package technology
目前微電子球柵陣列尺寸封裝( bga csp )正成為高端ic封裝的主流技術。Fan - out refers to the number of standard loads ( inputs ) that the output of a gate can be connected to without impairing its normal operation
輸出端數量就是指在不削弱其功能的前提下,輸出柵門所能連接的標準荷載的數量。The keystone of this research project is an experimental investigation using a large - scale low - speed linear turbine cascade
針對上述問題,本文以大型低速線性渦輪葉柵為對象進行其端壁氣膜冷卻的傳熱研究。Connectors for electronic equipment - printed board connectors with assessed quality - detail specification for two - part modular connectors, basic grid of 2, 0 mm, with terminations on a multiple grid of 0, 5 mm - detail specification for two part modular connectors with optional shielding plates for printed boards and backplanes, basic grid 2, 0 mm, with terminations on a multiple grid of 0, 5 mm
電子設備用連接器.經質量評定的印製板連接器.接端柵格0 . 5mm倍數基本柵格為2 . 0mm的兩件式連接器詳細規范.接端柵格0 . 5mm倍數基本柵格為2 . 0mm的印製板和底板用兩件式連接器In the account and analyses, we take into account the temperature stress in the cases : the base course is not cracking and the base course has been cracked. according to case of the base course cracked, the stress intensity factor of crack tip has been counted. according to case of the base course not cracked, the bend experimentation, the snap experimentation, the fatigue experimentation and the compress experimentation have been done, in addition, according to the latter, the finite element analyses have been done to demonstrated the temperature stress and the prime location of the glasgrid
在分析計算中,主要考慮基層開裂前和基層開裂后兩種情況下的溫度應力場,對基層開裂后,裂縫尖端的應力強度因子進行了計算;對基層開裂前的溫度應力場進行了室內小梁彎曲實驗、劈裂實驗、疲勞實驗、壓縮實驗,結合有限元分析結果,論證了基層開裂前的溫度應力場及格柵的最佳鋪設位置;研究成果在寧夏古王路上進行了驗證。Rng k - turbulence model and standard wall functions were used. the results show that the basic flow and heat transfer patterns of both cases were all well simulated, but further improvement on the accuracy of numerical simulation is needed
結果表明數值模擬從定性的角度較好的模擬了葉柵端壁附近的流動和型面換熱規律以及型面氣膜冷卻的流動與傳熱問題,但在數值上的準確性還需要進一步的改進和提高。According to the problem that grating scale hardly achieves high resolution when in high speed and the characteristic of high speed high precision system, this paper presents a cross dimension displacement measuring method based on dual grating scales dual measuring, the counting values of dual grating scales switch and merge
針對高速高精度定位系統的運動特性及光柵尺測量高速位移時難以實現高分辨力的問題,本文提出了適合高速且實現系統末端點高分辨力位移測量的新方法基於雙光柵尺雙重計數、切換與合成的跨尺度位移測量方法。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,冷卻孔內產生的損失是主要的,並且低靜壓區域的冷空氣噴射會增加單位冷空氣質量流的消耗;噴射的冷空氣與葉柵端壁流場之間有強烈的相互作用;二次流對冷卻空氣的流動軌跡有較強的影響;冷空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損耗。分享友人