useful speed 中文意思是什麼

useful speed 解釋
有效速度
  • useful : adj. 1. 有用的，有益的，有效的，有幫助的。2. 〈俚語〉值得稱贊的，精通…的 （at）。adv. -ly ,-ness n.
  • speed : n 1 快，迅速。2 速率，速度。3 （汽車的）變速器，排擋。4 （膠片，照相紙）感光速度。5 〈古語〉興隆...
  1. The air - flow field in the stripping unit can be adjusted easy by changing the rotation speed of fan which is benefit to reduce the grain losses, it was found during experiment that the cross - flow fan can diffuse some of mog ( material other of grain ) and diffuse it in a certain direction which is useful to satisfy the working condition for driver and lighten working load of the threshing unit of the combine harvester candidate and speciality : peng shengmin ; machinary design and theory supervisor : prof. zhang huiyou

    該裝置可以通過控制橫流風機的轉速，使裝置內氣流在有控制的情況下排出裝置外，改善了裝置內流場狀態，提高了裝置喂入口處的負壓，這對減少摘脫裝置的落粒損失，有著重要意義。由於橫流風機的除雜，可以減輕機器的復脫和清選負荷。安裝橫流風機后可以對裝置的出風口處灰塵進行有效導引，改善駕駛員的工作條件。
  2. As a newly developed high - performance ship, wave piercing catamaran ( wpc ) has been applied and investigated more and more extensively. in this paper, the theoretic calculation method of wave resistance of a kind of wave piercing passenger catamaran with 500 passengers has been researched, including the ship lines optimization ; the fast speed experiment research work and the research of the relation between the principal dimensions and the resistance. the relation between the wave piercing catamaran and the ship form parameters has been further researched, and also some useful theoretic basis and practical means have been provided for its practical engineering appliance

    本文以「 500客位穿浪雙體船」為研究對象，對穿浪雙體船興波阻力理論計算和船型優化方法進行了研究，其主要研究內容如下：一、穿浪雙體船的線型優化二、穿浪雙體船快速性理論與試驗研究三、穿浪雙體船主尺度與快速性的關系通過以上內容，較深入的研究了穿浪雙體船船型參數與快速性的關系，為其在實際工程中的應用提供了理論依據和解決方法。
  3. A mathematic model of the motor is builded and emulated through matlab. the low - speed and constant - torque, high - speed and constant - power state is analyzed and researched, also the software approach of simulation to the driver has been done, a digital signal processor tms320lf2407 is developed successfully to control the perm square - wave bldcm driving airscrew of solar powered unmanned engine. it is useful to the further study

    在matlab下建立了電機的數學模型，通過計算機模擬，驗證了數學模型的正確性，同時在理論上對低速恆轉矩高速恆功率運行進行了分析與研究，提出了一種用模糊控制的方法實現恆功率控制，並對驅動器進行了系統模擬，成功的研製了以數字信號處理控制器tms320lf2407為控制核心的驅動器，控制無刷直流電動機驅動太陽能無人飛機的螺旋槳，為後面繼續研究工作提供了參考。
  4. As an part of intelligent transport system, vehicle recognition & velocity measurement system based on video and dsp integrates some useful function, such as vehicle license plate recognition, vehicle velocity measurement, traffic supervision, toll collection, etc, and it is mainly used in supervision on over - speed vehicles

    基於視頻和dsp車輛識別測速系統是智能交通系統（ its ）中的一個組成部分，它集牌照識別，車速檢測，流量監控，費用收取等功能於一體，主要應用於超速違章車輛監控。
  5. On the analyzing of the technology trend, a plan of developing a multifunctional mark printer is brought forward the procedure of the development of a multifunctional mark printer is detailed in this thesis. a interface - card and a photoelectric board is designed, a control circuit is assembled by using them, through which a computer can control the mark printer ; a mark printer driver is developed by using com technology ; the mechanical part of the mark printer is designed by imitating milling machine ; a database software for components management is developed for high - speed train bearing industry. the managements include the registering for components, unique mark printing on components and analyzing of useful parameters. the user can complete the lifetime tracing for a component expediently

    設計介面卡和光電隔離放大電路，組成了電機控制和抬筆控制電路，通過它們pc機可以控制標號印表機工作；採用組件化技術開發了標號印表機控制軟體，驅動標號印表機工作；參考刻模銑床原理，設計了機械部分；針對高速客車軸承廠，開發了零件標號管理軟體，使標號列印和信息管理系統有機結合起來，達到在登記零件信息的同時，自動列印零件的標號，方便了對零件的跟蹤管理。
  6. The total auto symbol recognition disposition method proposed in this paper can deal with the problem which converts papery of aircraft theory graphics or system graphics into vectorgraphs which can lose some useful information. furthermore, the display technique with multi - level buffer not only resolves the problem of high - speed for aircraft theory graphics or system graphics in cbt, but also ensures scrolling and zooming in / out smoothly and avoids the flashing phenomenon efficiently

    目前紙質的飛機系統圖、原理圖矢量化方法用基本的矢量圖元按其位置來再現原始圖，從而導致矢量后圖中各符號整體信息丟失問題，該文提出的自動符號識別方法可有效地解決該問題，此外改進多級緩沖顯示技術不但可有效地解決cbt中系統圖、飛機原理圖的快速顯示，而且也保證圖形可連續光滑滾動和消除放縮拖動時屏幕閃爍現象。
  7. The result of the calculation for tip clearance is reasonable when it is compared with theory. two ways are put forward for convention of dimension of the turbine components from high temperature to low one, which is related with tip clearance, a simple example is used to illuminate that the two ways are useful, using the method of design optimization, axiisk and a blade of a certain turhine is analysed, it showes that the method of design optimization is feasible to be used for convertion of dimension of the turbine components. finally, ansys software is used to analyzed the variation of tip clearance with the method of cyclic symmetry analysis when engine works under the conditions of temperature and rotational speed, am using a new method to deal with thermal contact resistance in the calculation

    本文完善了計算渦輪葉尖間隙的簡化演算法程序，增加了程序的計算功能，並將其應用於某高壓渦輪進行葉尖間隙分析，所得結果與理論結果進行了對比，得出修改後的程序用於葉尖間隙計算是合理的；同時提出了與葉尖間隙相關的渦輪典型部件的冷、熱態的尺寸兩種換算方法，使用優化設計的方法進行了實例分析，說明了所提出的計算方法是可行的；最後應用ansys有限元軟體利用循環對稱的方法分析了某型發動機高壓渦輪在溫度場及離心力作用下的葉尖間隙在發動機工作過程中變化情況，並分析了計算中的接觸熱阻的處理問題。
  8. In basis of integer bush, the flange bush adopt high speed friction jointing, the materil are alluse 10 steel bracking, the surface sinter cupbsn 10 - 10tin and copper powder, have enough carrying capability and longer using life, not easy to flake off. suitable for engineer mechanism, panzer, train, pile driver, take the place of bronze cover, save the costs greatly, make the useful life longer

    翻邊軸套在整體軸套的基礎上，採用高速磨擦焊接製作而成，材料全部採用以10井鋼背為基礎，表面燒結cupbsn10 - 10錫青銅粉，具有承載能力大，使用壽命長，不容易脫落等優勢，主要適用於工程機械，坦克，火車，打樁機上，以替代原來的青銅銅套，大大節約了成本，延長了產品的使用壽命。
  9. This work can also be useful for other high - speed instrument development

    論文的研究工作對其它具有高速機構的儀器和設備的研製也有重要參考作用。
  10. The results of study show that the transmitting speed of flame is slower and the combustion duration is longer than gasoline. the combustion status of lpg is improved, but the problem of long combustion duration also exists when speed and load are increased. it is useful to adjust ignition timing, but nox emission increase

    通過研究認識到： lpg燃燒時火焰傳播速度比汽油慢，燃燒持續期比汽油長；隨著轉速和負荷的增大， lpg燃燒狀況得到改善，但仍出現后燃期長，熱量利用不充分等問題；點火提前角的調整有利於lpg的燃燒，但使nox排放升高。
  11. The high speed lvds i / o interface chip ftlvds that we designed in the task is an useful taste to solve the bottleneck

    本課題所設計的lvds高速i o介面晶元ftlvds ，正是對解決這一瓶頸的有益嘗試。
  12. However, the power line has largely been dismissed as being too noisy and unpredictable to be useful as a practical high - speed communication channel

    然而，電力線由於其自身的噪聲嚴重和不可預測的特點，而很少作為高速數據通信通道。
  13. To overcome the second, the transmission needs to include a gearbox providing a range of different ratios of input to output speed, enabling the engine ' s speed to be maintained within the useful range of torque output over a more or less wide range of vehicle speeds

    對于第二個問題，可利用變速箱來安排不同的輸入輸出比，使發動機保持一定的轉速，以便提供保持車輛速度的有效扭矩輸出。
  14. The achievements of this dissertation would most probably be useful for developing the high speed spindles and improving the active control of flexible rotor systems as well

    本文的研究對于發展高速加工技術及豐富柔性轉子系統主動控制方法具有重要的理論意義和工程應用價值。
  15. The basic link carries out the function of the conventional fuzzy controller ; the adaptive link performs the modification of the control rules and includes three keys : the properties measurement, the rectification of controlling variable and the modification of the control rules. this method is simple. it is also flexible and convenience to modify. the result of the will testify that the design way is correct and the sa fuzzy controller is useful. for short of time, 1 just focused on theoretical discussion of acvf speed regulating system of sa fuzzy control

    基礎層完成和常規模糊控制器一樣的功能；自適應層則執行控制規則的修改，包含性能測量、控制量校正及控制規則修改三個關鍵步驟。這種方案設計思路簡單、修改靈活方便，體現武漢理工大學碩士學位論文這種自適應模糊控制的優越性。山于時間，本文僅從理論角度討論了船模自航試驗調速方案的自適應模糊控制，進一步更深入的實踐研究是今後亟待完成的任務。
  16. In this paper, based on the theory of ehl ( elasto - hydrodynamic lubrication ), a study is conducted to investigate the impacts of geared factors ( including gear speed ratio, gear teeth modulus and center distance ) on the lubrication behavior of gearing, and some useful conclusions are obtained

    應用彈性流體動力潤滑理論，計算分析了傳動比、模數及中心距等齒輪參數對齒輪副潤滑性能的影響，得出了一些有益的結論。
  17. In the coding scheme, this paper uses the coding method based on quad - tree partition, which increases the speed and veracity of the coding and is useful for object recognition. there are various flags during the quad - tree partition coding. in order to get the best coding, this paper alteres the flags, which include maximum recursion depth, minimum recursion depth, domain pool type, scaling bits, offset bits, number of iterations

    這些參數包括有最小最大深度、 domain集類型、比例系數、偏移系數、匹配域類型；在解碼過程中，有迭代次數、比例系數、偏移系數，針對要編碼的圖像，調節以上參數，得到一組最佳參數，這樣，利用最佳參數可以達到最好的編碼質量，從而提高識別的效果。
  18. ( 5 ) the energy consumption analysis and experiment of the two systems, which are pump - control - motor speed governing system with inverter and hydraulic speed governing system with inlet throttle, are made. some useful conclusions are obtained. new clews are provided to enhance the total efficiency of hydraulic speed governing system with inverter

    （ 5 ）對變頻泵控馬達調速系統和進口節流閥控馬達調速系統進行了能耗分析和對比實驗研究，得到了有益結論，為進一步提高變頻泵控馬達調速系統的節能效果提供了新思路。
  19. He has the kind of speed that is extremely useful - - i wonder if anyone can get from the pick at the three - point line to layup range faster

    他擁有十分實用的速度? ?我想知道聯盟中是否有人能比他更快的從三分線來到上籃區域。
  20. Aim at the network speed request of image collection in industry, we bring forward the image real - time transfer scheme which be proved to be effective and useful by a lot of emulation test result

    針對于工業的圖象採集網路速度要求，提出了圖象實時傳輸方案，並通過大量的模擬測試結果證明方案的有效性和實用性。
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