speed control mechanism 中文意思是什麼
speed control mechanism
解釋
變速機構-
In view of the poor stop accuracy, unstability of climbing at reduced or low speed and over - winding of mine ac lift when power braking is used, a siemens all - numerical rectification device is applied in the braking system of mine lift and its control mechanism and method are described
針對採用動力制動礦井交流提升機停車準確率差，減速與低速爬行不平穩及產生過卷的問題，將西門子全數字整流裝置應用到提升機制動控制系統，並介紹了該系統的控制原理與方法。 -
Abstract : in view of the poor stop accuracy, unstability of climbing at reduced or low speed and over - winding of mine ac lift when power braking is used, a siemens all - numerical rectification device is applied in the braking system of mine lift and its control mechanism and method are described
文摘:針對採用動力制動礦井交流提升機停車準確率差，減速與低速爬行不平穩及產生過卷的問題，將西門子全數字整流裝置應用到提升機制動控制系統，並介紹了該系統的控制原理與方法。 -
On the mechanism of speed control, the paper presented a proper speed control method for a big amount of thin flow sessions
在發送速率控制上，本文提出了一種適合大量小流量會話傳輸的速率控制機制。 -
By applying the method composed of theory analysis, simulation and test verification, some researches have been done on unload characteristic, torque - current characteristic, revolving speed - voltage characteristic and mechanism characteristic of the motor system. meanwhile, various control modes of the system are analyzed. all these researches provide some references for the motor ’ s application
採用理論分析、模擬模擬、試驗驗證相結合的方法，分別研究了雙凸極電機的空載特性、轉矩電流特性、轉速電壓特性、機械特性，並對各種控制方式進行了分析、比較，為在實踐中更好地應用雙凸極電機提供了一定的依據。 -
The vehicle control is an important part of ihs, which includes lateral control and longitude control. lateral control is about steering wheel servo - mechanism, which can make automated vehicle running on the planned routine automatically. longitude control is the control on the running speed and the start and brake of vehicles
車輛的控制包括車輛的橫向控制和縱向控制兩方面，車輛的橫向控制主要是進行方向盤伺服機構的控制，即使車輛能在無人駕駛的情況下，在預定的路線內自動行駛；車輛縱向控制主要研究車輛的速度控制，起動和制動控制。 -
Firstly, this paper introduces the asynchronous motor model, and compares it with the dc motor ’ s. then the paper studies the principle of vector control, and proposes an improved current model of rotor flux observer. this paper also studies the three - level inverter ’ s topology, working principle, the neutral - potential unbalance mechanism and its controlling strategy. the paper especially studies the svpwm in details. the interface between the vector control and the three - level inverter is studied in details, including the generation of reference voltage vector, its judging of the sector and triangular regions, and the working mechanism after it sent into three - level inverter. when synthesizing the reference voltage vector, select the vector which only includes p and o states as the starting vector, thus eliminate the vector shift problem when sector changes. this paper fully takes advantages of the powerful functions of matlab / simulink to set up the simulation model. this construction is very explicit. the simulation results verify the inverter voltage output is correct, the rotor flux is steady, the asynchronous motor ’ s dynamic and steady state performances and speed modulation are excellent
本文首先介紹了異步電機的數學模型，在此基礎上將異步電機的數學模型與直流電機的數學模型進行了比較;然後介紹了矢量控制的基本原理，採用了一種改進的轉子磁鏈電流型觀測模型;對三電平逆變器的電路拓撲、工作原理、中點電位不平衡的機理及控制方法進行了介紹，詳細分析了空間矢量脈寬調制策略。本文對異步電機的矢量控制與三電平逆變器之間的介面進行了詳細的研究，包括:參考電壓矢量的形成、所落扇區與具體小三角形區域的判斷、送入逆變器之後的工作機理。在參考電壓矢量的合成時，選擇只包含p 、 o狀態的空間電壓矢量作為起始矢量，解決了扇區切換時的矢量突變問題。 -
It made use of dtc ( direct torque control method ) and speed control method to meet different detecting, so that the mechanism runs steadily
在驅動控制方式上，採用了直接轉矩控制和速度控制兩種控制模式，以應付不同參數檢測的要求，使得其機械繫統運行更加平穩。 -
Establish talent incentive machanism, regard employees as precious wealth of the company and establish s fine developing platform. on the stage of catering management of hengrong, we possess a proup of well - trained professional management teams with rich management experience and modern management mode to help the effective control of the costs of the company. introducing modern enterprise management mechanism san establishing strict and order organization framework are the basic assurance for high - speed operation of the company ; youthful and professional talents are the impetus source keeping sustainable development and continual innovation of the company
建立人才激勵機制，視員工為企業的寶貴財富，建立優良的成長平臺.在恆榮餐飲管理的舞臺上，我們擁有一批訓練有素、管理經驗豐富的專業管理隊伍，現代化的管理模式，協助企業有效控製成本.導如現代企業管理機制體系，建立嚴謹有序的組織機構是公司高速運作的基本保證;年輕化、專業化的人才組合，是公司持續發展規律，不斷創新的動力源 -
Abstract : through analyzing the principle of spindle drive for high speed winding machine, the article not only describes a kind of spindle drive for take - up mechanism on the basis of measure - control method of constant velocity winding, but also introduces microcontroller measure - control system of constant veloity winding for high speed winding machine
文摘:通過對化纖長絲高速卷繞機錠軸傳動方式的原理分析，論述了一種以恆線速卷繞測控方法實現錠軸傳動的卷取機構，並介紹了在化纖長絲高速卷繞機上實現恆線速卷繞的單片機測控系統。 -
Through analyzing the principle of spindle drive for high speed winding machine, the article not only describes a kind of spindle drive for take - up mechanism on the basis of measure - control method of constant velocity winding, but also introduces microcontroller measure - control system of constant veloity winding for high speed winding machine
通過對化纖長絲高速卷繞機錠軸傳動方式的原理分析，論述了一種以恆線速卷繞測控方法實現錠軸傳動的卷取機構，並介紹了在化纖長絲高速卷繞機上實現恆線速卷繞的單片機測控系統。 -
With mocvd film technology, film chemical composition is easier to control, deposition temperature lower, deposition speed higher, deposited film more compact, homogenous and flat. in this paper, firstly, the study of fgms, the study of cvd and mocvd, and the nucleation mechanism have been introduced. secondly, the fabracations of metal / metal and metal / ceramic fgms have been reported
本文在介紹功能梯度材料的研究進展， cvd 、 mocvd技術的研究概況以及mo （ co ） _ 6 ， fe （ co ） _ 5的成膜機制和工藝條件之後，著重報道了利用mocvd技術制備陶瓷薄膜，金屬金屬和金屬陶瓷功能梯度材料。 -
The mechanism of two possible ways of thrust vectoring control : force and moment control are analyzed. the effects of thrust vectoring on aircraft supersonic performance, take - off and landing performance, low speed and high angle of attack performance are studied. the air combat effectiveness of thrust vectoring control and post - stall maneuvers are also analyzed
5 、分析了推力矢量的兩種應用方式：力控制和力矩控制的機理，研究了推力矢量對飛機超音速性能、起降性能、低速大迎角性能的影響，討論了推力矢量與過失速機動對空戰效能的影響。 -
As the application of distributed computing is used much more widely ， distributed database becomes a significant part of information management it avoids a lot of disadvantages of conventional centralized database ， and is applicable to many situations distributed database is a set of data which is the unity logic ， but in fact these data is located on different sites it is of high availability ， easy expansibility ， high concurrency ， high efficiency and etc in distributed system ， data redundancy is a method to improve the speed of query and the availability of system distributed query should shield the lower level details of data redundancy from end users ， distributed transaction should ensure data from disaccord this paper introduces basic conceptions of distributed database firstly ， discusses distributed transaction and concurrent control ， describes the development prototype mysql ’ s characters ， architecture and executive mechanism ， then shows the skeleton model of dpsql and exposes the strategy and algorithm of distributed query and distributed transaction ， at last analyzes the extra expenses and response delay of distributed processes this paper exposes the implementation mechanism of distributed query and distributed transaction emphatically distributed query uses the strategy of “ read one ， write a11 ” s0 in such a system if user ’ s requests are read - - only for the most part and the distribution of data redundancy is plausible ， efficiency is very high distributed transaction uses two - 。 phase commit protocol to ensure the consistency of global data ， which has less communication overhead
分散式查詢需要向用戶屏蔽數據冗餘分散的底層細節，分散式事務處理要保證全局數據完整，這都是傳統集中式數據庫不曾面臨的問題。本文首先介紹了分散式數據庫的概念性問題；接著討論了分散式事務涉及的定義及演算法；然後描述了dpsql的原型mysql的特性、結構和執行機制；繼而給出了dpsql的梗概模型，闡述了實現分散式查詢和分散式事務處理的策略及演算法；最後分析了進行分散式處理給系統增加的額外開銷和客戶端的額外響應延遲。本文重點描述了分散式查詢和分散式事務處理的實現機制，分散式查詢採用」讀一個寫全部」的本地優先策略，在讀操作頻繁的系統中，只要庫的分佈合理，單機效率極高，幾乎無任何附加開銷和延遲，而以整個系統的角度看來，吞吐量就更是優于單機系統；分散式事務處理採用兩階段提交協議，通信次數較少並能確實保證副本一致。 -
Therefore we have to make sure the quality of new stock, be strict about stock mechanism of import and export, find the strategic orientation of stock, and especially control diffusion speed strictly
為此我們必須確保新股的質量，嚴格股市的進出機制，找準股市的戰略定位，尤其要嚴格控制擴容的速度。
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