無聲運轉 的英文怎麼說中文拼音 [wúshēngyùnzhuǎn]
無聲運轉 英文quiet run
Aiming at permanent brushless dc motor in mini - bev ( battery electric vehicle ) with torque ripple and violent noise during low speed running, the fuzzy control method is combined with slide mode control method to suppress the influence due to un - modeling parameters, and to ensure the robustness in the process of reaching slide mode plane
摘要針對微型電動車用永磁無別電動機轉矩脈動大、低速運行時噪聲明顯等主要問題，採用模糊控制和滑模控制相結合的方法，克服了未建模參數的影響，保證了滑模到達階段的魯棒性，同時抑制了轉矩脈動。The frightful apparatus worked smoothly without a sound.
這可怕的裝置無聲無息地平穩運轉著。Just as the foreman of a spinning - mill settles the work - people in their places, walks up and down the works, and noting any stoppage or unusual creaking or too loud a whir in the spindles, goes up hurriedly, slackens the machinery and sets it going properly, so anna pavlovna, walking about her drawing - room, went up to any circle that was pausing or too loud in conversation and by a single word or change of position set the conversational machine going again in its regular, decorous way
像一個紡紗作坊的老闆，讓勞動者就位以後，便在作坊里踱來踱去，發現紡錘停止轉動，或者聲音逆耳，軋軋作響音量太大時，就趕快走去制動紡車，或者使它運轉自如安娜帕夫洛夫娜也是這樣處理事情的，她在自己客廳里踱來踱去，不時地走到寂然無聲或者談論過多的人群面前，開口說句話或者調動他們的坐位，於是又使談話機器從容不迫地文質彬彬地轉動起來。Main purpose : it is widely used in steady speed mix, high speed disperse and sand will lab process. it adopt mouse cage motor, so no sparkle phenomena when working
主要用途:廣泛適用於穩速攪拌，高速分散，砂磨實驗過程。由於採用了籠式電機，運轉時不會產生火花。與有刷電機相比，無碳刷磨損的問題，噪聲小。With the advantages of high gain and output power, low noise, wide bandwidth as well as no relation with polarization, edfa changes the traditional optical - electrical - optical relay mode step by step in many fields, and becomes an indispensable device in modern optical communication systems. it saves the expensive cost in optical - electrical transition, makes equipment easy to operate and maintain
由於其本身具有高增益、高輸出功率、低噪聲、帶寬寬、與偏振無關等優點，在很多領域和場合， edfa正逐步取代傳統的光-電-光中繼模式，省去光電/電光轉換的昂貴成本，便於設備的運行維護，成為現代光纖通信系統中不可缺少的關鍵部件。If a new government system for tracking foreign students isn ' t working by early next year as required by congress, as many as 80, 000 students could be stranded waiting for permission to enter the united states, an education group said recently
近日，美國一教育小組聲稱：如果政府追蹤外國留學生的新系統不能如國會所要求的那樣到明年年初就正常運轉的話，將有8萬學生束手無策地等待著赴美的簽證。Free of conventional cooling towers and mechanical and electromagnetic noises, the equipment is built of static components. except for water sound during operation, it produces no noise and no co - oscillation effect - complies with noise control requirements
（ 2 ）無傳統冷卻塔機械及電磁低頻噪音，本塔由靜態組件構成，運轉除水聲外、無噪音、無共In the process of building and using the mass concrete structures, because of the effect of out - side condition and themselves, some faults will form in the structure, these faults will effect the bearing capability and endurance using nondestructive testing method to test the concrete ' s quality and diagnose its healthy, which has the significant sense in assessing the safety stability and research of the administering diseases this dissertation mostly researched the testing methods in the mass concrete structure, discussed the principles, methods, features, sphere of application of the ultrasonic testing in the mass concrete structure with faults, used dynamic fem to simulate the testing process, discussed when the concrete structure with cracks is under the effect of the pulse, how the elastic waves propagate and what are their changing feature, researched the principles of the first - arriving waves " phase when the cracks " depths are not same, obtained the relation between the inversion point and the cracks " depth, which has the direction sense in the application of projects, the second part of this dissertation is ct, which used the ultrasonic wave running through the tested - substance to get arriving - time of the ultrasonic wave, then inverse the image this dissertation drawed one ct program which can well present the different little cells " ultrasonic wave velocity profiles of the substance, thereby to diagnose the quality of the part of the tested - substance, ct has the better using foreground.
在混凝土結構的施工及使用過程中，由於受其自身及外界各種因素的影響，常常會產生一些缺陷，對結構物的承載能力和耐久性造成嚴重影響，採用無損檢測技術進行質量檢測和健康診斷，這對混凝土結構開展安全、穩定性評估以及病害隱患治理研究具有重要意義。本論文主要針對大體積混凝土結構缺陷的檢測方法展開研究工作，重點討論了超聲波法檢測混凝土結構裂縫的基本原理和方法及其特點、適用范圍，運用動力有限元數值模擬其檢測過程，探討了有裂縫缺陷的混凝土結構在脈沖荷載作用下彈性波的傳播及其變化特徵，研究了不同裂縫深度下首波相位變化規律，得出了反轉臨界點與裂縫深度之間的關系，這對實際工程應用具有指導意義。聲波ct是一種新的無損檢測技術，它是利用聲波穿透被檢測體獲取聲波接收時間，來進行計算機反演成像的技術。Results : the specific sonographic signs of testicular torsion were that the blood flow was diminished or absent in the testicle, and there was a hyperechoic mass with no blood flow above the testicle
結果：睪丸扭轉特異性表現為睪丸內血運減少或消失以及睪丸上方無血運高回聲團塊。This machine employs vibration motor driving gears, which ensures stable operation, sturdy and reliable work, steady performance and low vibration and noise. there ' s no powder and it is easy to operate and to provide maintenance to it
本機採用振動電機傳動機構，運轉平穩，牢固可靠，工藝性能穩定，振動小噪聲小，無粉塵外溢，及操作維修方便。The ultrasonic motor displays particular properties like the higher power density, the non - electronmagetic interference, the low speed with big torque, the small start - stop time - constants, the movement without the noise, high holding torque with no current applied and so on
它具有功率密度大、無電磁干擾、低速大轉矩、動作相應快、運行無噪聲、無輸入自鎖等卓越特性。Active magnetic bearing ( amb ) is a kind of novel high - performance bearing, because of the contact - free property between the rotor and stator, the rotor can rotate at very high speed, with almost no wear. so amb has the advantages of long lifetime, low power loss, low noise and no lubrication
主動磁軸承是一種新型、高性能軸承，由於轉子與定子之間不存在機械接觸，轉子可以達到很高的運轉速度，幾乎沒有磨損，因而具有壽命長、能耗低、噪聲小，無需潤滑的優點。Low noise : water pump supported by two low - noise bearings contributes to stable operation without noise basically except slight sound of motor