three-range transmission 中文意思是什麼

three-range transmission 解釋
三檔齒輪
  • three : n. 1. 三個人[東西]。2. 三歲，三時。3. 【板球】3字型。
  • range : vt 1 排列；整理（頭發等）。2 使歸類[班、行、隊]；把…分類。3 〈用被動形或反身形〉加入，站住…的一邊...
  • transmission : n 遞送；傳遞；傳達；傳染；移轉；【機械工程】傳動；傳遞；變速器；聯動機件；【無線電】傳送；發射；...
  1. Through establishing three mathematics models including the movement equation of the mechanical and electrical transmission system, the control of the load and the sliding in stable status, direct - current - brake of ac motor, this paper ascertained the range of the frequency value of drive motor and the efficiency of transmission system, calculated the efficiency of load motor in stable status and the moment of load motor in braking. this paper completed the design of the mechanical part of inertia brake test platform and provides a tool for the measurement of the inertia brake parameters

    本文還通過建立慣性制動器試驗臺的包括機電傳動系統的運動方程、穩態運行時負載與轉差率控制、交流電動機直流制動在內的三個數學模型，確定驅動電機的頻率取值范圍和傳動系統的傳動效率，驗算慣性制動器穩態運行時負載電機軸功率和慣性制動器制動時負載電機軸力矩，完成慣性制動器試驗臺設計中的機械部分，為慣性制動器各參數的測量提供工具。
  2. The long range data service is three clients / servers mode core, in three clients / servers mode long range data service has implemented to the user interface, the commercial logic rule, the digital data service logical separation and the independent seal, data buffer reduced the client end to request to the database service data, also caused the client end the application to stand then obtains the data but not to use the waiting network the data transmission

    遠程數據服務是三層客戶機服務器模型的核心，三層客戶機/服務器模型中的遠程數據服務實現了對用戶界面、商業邏輯規則、數據服務的邏輯分離和獨立封裝，其中數據緩存減少了客戶端對數據庫服務的數據請求，且使客戶端的應用立即可獲得數據而不用等待網路的數據傳輸。
  3. Several topics on coding and modulation theories of uav communication were discussed in this thesis. by analyzing features of uav communication, difference on three aspect between uav and satellite / civil mobile communication were pointed out, i. e. rapidity of the channel state parameters changing when low - altitude flying, wide range of the signal to noise ratio ( snr ) in receiver, and demand on transmission delay

    無人機通信與衛星通信、移動通信有相似之處，也有明顯不同，主要是：無人機低空飛行時通道參數變化劇烈，通信中接收機信噪比變化范圍大，要求傳輸時延短。
  4. Some filters have been designed for eut after the studies of the materials absorbing performance in euv range. we optimized a 13. 0nm filter with 70 % transmission composed of a sandwich structure of si - zr - si layers. the other three filters are aluminum film with the transmission between 45 % and 65 %

    本文研究了不同材料在euv波段吸收特性，設計出適合空間應用的濾光片組，在13 . 0nm波段採用si - zr - si的夾層型濾光片，透過率為70 ；在其它三個波段採用鋁膜濾光片，透過率在45 ? 65之間。
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