步進式開關 的英文怎麼說

中文拼音 [bùjìnshìkāiguān]
步進式開關 英文
step-by-step switch
  • 步 : Ⅰ名詞1 （步度; 腳步） pace; step 2 （階段） stage; step 3 （地步; 境地） condition; situation; st...
  • 進 : 進構詞成分。
  • 式 : 名詞1 （樣式） type; style 2 （格式） pattern; form 3 （儀式; 典禮） ceremony; ritual 4 （自然科...
  • 關 : Ⅰ動詞1 （使開著的物體合攏） close; shut 2 （圈起來） shut in; lock up 3 （倒閉; 歇業） close down...
  • 步進 : step by step步進操作 step by step operation; 步進傳動 step by step drive; 步進法 step by step met...
  1. Nowadays, there are a series of problems to solve in the management of student apartments. after comparing the three representative modes of investing and constructing college apartments worldwide, i. e. the modes of apartments managed by university, managed by investor and managed by both university and investor, the paper analyzes the different operation modes according to different construct forms and their advantages and disadvantages. using the operation modes of student apartments abroad for reference, the paper puts forward three new modes combining property management and ideological and political education in operating students apartments : community management, apanage management and open management, and lays emphasis on the key role of managing student apartments in the socialization reform

    目前在我國學生公寓的運作上還存在著一系列需要研究解決的問題，本文總結國內高校學生公寓投資和建設的三種代表形式進行了分析比較，針對三種管理的不同形式，即由校方統一管理、由投資方管理以及由學校和社會共同管理，進一步分析其投資建設形式不同帶來的不同運作，通過對其利弊的分析以及對國外高校學生公寓運作模式的借鑒，本文提出了「社區化管理」 、 「屬地管理」 、 「開放式管理」 、 「物業管理與思政工作有機結合」四種學生公寓運作的新思路，著重強調了學生公寓的管理工作在整個公寓的社會化運作過程中的關鍵性作用。
  2. In the 20 years of reform and opening, shandong peninsula is the typical area in china with rapid economic development. the transition of second and third industr ies has achieved periodical success, but are facing fundamental structural and in stitutional confilects at present. the paper analyses the status in quo, advantage s and disadvantages of the transition, discusses the trends and rational patterns, and put forward the countermeasures of the transition. the author attempts to us e economic functions analyzing two kinds of develop patterns so as to compare th eir advantages. the paper strengthened the importance of labor intensified indust ry which is often ignored ; find out the key point of the transition of capital in tensified industry, extraverted economy and the third industry ; integrating the development rules of industry and region, bring forward the method of “ choosing priority, half step and walk faster ” for the growth of knowledge economy which is widely noticed recently

    山東半島是改革開放20年來區域經濟發展較快、在國內具有典型意義的地區，該區二三產業的轉型已取得初步成果，但仍面臨突出的結構性和體制性矛盾.本文分析了山東半島二三產業轉型的現狀、利弊條件，探討了轉型的趨勢和適宜模式，最後提出了對策和措施.文中嘗運用柯布?道格拉斯方程進行兩種發展模式的對比分析以辨別利弊，強調了常為人忽視的勞動密集型產業的作用，論述了發展資本密集型產業、外向型經濟及第三產業的重點，結合產業和區域發展規律，對近來廣受關注的知識經濟的發展提出了「選擇重點、小步快走」的觀點
  3. Variable voltage and variable frequency ( vvvf ) inverter control technology applied by ford passenger lift extends the utilization from the elevators drive system to the door machine system, plus its matching none link lever synchronous belt type door machine structure, it results in the more smooth sensitive and secure door open and shut. the passengers feel the doubled warmth in entering into and exiting the elevators

    福德乘客電梯所應用的變壓變頻（ vvvf ）逆變器控制技術，從電梯驅動系統延伸運用到了門機系統中，加上與之相匹配的無連桿同步帶式門機結構，使電梯門的開啟和關閉更加平穩、靈敏和安全，令進出電梯的乘客倍感親切。
  4. In the synchronous " model, based on the idea of polygonal flux linkage locus, by means of constructing the switch state period table of three phrase voltage inverter is required. in the brushless model, the igbt ( isolated gate bipolar transistor ) switch state period table is gained by gal ( generic array logic ) which analyzes the signal of position feed - back

    在同步方式下，基於多邊形磁鏈軌跡法的思想，用作圖法求得三相電壓型逆變器的pwm波形序列；在無刷直流方式下，用gal對位置反饋信號進行邏輯綜合，得到開關管的導通規律。
  5. Under the background of the research work - " expert system of hydraulic brake system design for saloon car, small and medium passenger car " for nanjing yuejin automobile group, in this paper, a set of special cad software for vihicle brake was developed in which the researchful object was brake, . the cad supporting software was pro / engineer and the developing language was vb. the project of discreted brake was raised and 3d graphic parametric library of typical parts and assemblies was established. 3d solid modeling and parameter - driven between dimensions and relations were accomplished using pro / engineer

    本文以南京躍進汽車集團的橫向課題「轎車、中小型客車液壓制動系設計專家系統」為背景，以制動器為研究對象，以pro engineer為cad支撐軟體，採用vb語言，開發了一套汽車制動器專用cad系統；提出了制動器離散化方案，構建了參數化的制動器典型零部件三維圖形庫，使用pro engineer實現三維實體造型以及尺寸與關系的參數化驅動；圖形庫系統採用參數化圖庫引用、管理機制並擁有一個開放的擴充介面；研究了pro engineer二次開發模塊pro toolkit ，解決了同步模式下定製程序界面的問題，並實現與pro engineer的通信；建立了制動過程數學模型，推導了制動方程式並給出相關解法，編制了制動器數值模擬分析程序；構建了制動器設計資料庫。
  6. This article presents a sort of economical and opening line - cutting cnc system based on pc ， realizing method and key technology, develops step motor axis card and blending step motor driver based on l297 / l298 chip

    本文提出了一種適用於線切割機床的經濟型開放式數控系統結構及實現方法，進行了相關關鍵技術研究，並開發出了基於isa總線的步進電機軸卡以及基於l297 / 298晶元的混合式步進電機驅動器。
  7. The results of numerical experiments, using the four - dimensional variational data assimilation system of the nonhydrostatic mesoscale model mm5, show that : the tangent linear model and adjoint model conducted by keeping the " on - off " switches the same as the basic state, can provide a good approximation of the first - order information to the nlm perturbation and a good descent direction for the minimization procedure ; switching on and off at every other time step in the kuo cumulus parameterization scheme do n ' t impact the convergence rate of cost function ; the existence of the switches do n ' t impact improvement to the mm5 model rainfall prediction because that not only specific humidity, but also wind, temperature and pressure are assimilated into the model

    非靜力中尺度數值模式mm5的四維變分資料同化系統進行的數值試驗結果表明： 「開關」變量保持與基態一致，所構造的切向線性模式能夠提供關于非線性模式擾動的一階近似，伴隨模式所計算的梯度值能夠為最小化過程提供較好的下降方向；郭氏降水參數化方案中對流每隔一個積分步的交替發生並不影響目標函數最小化的收斂速度； 「開關」變量的存在也不影響將風、溫度、氣壓和比濕結合起來同化對mm5降水預報準確性的提高。
  8. Engineering drawing has always been labeled as a practical subject. a combination of geometrical, building. mechanical and electrical drawing, it relates between theory and the picture of reality. engineering drawing will provide an accurate and complete ptcture for every object tn terms of shapes and sizes. usually, it is taught using the face - to - face teaching mode even in an odl environment. due to its nature, some students may find difficulty in imagining and interpreting the drawings. however, the availability of sophisticated technology provides the opportunity for the learning of engineering drawing to be enhanced via online. a web - based system for teaching and learning engineering drawing was developed based on a constructivism model. the web - based system is tailored for several topics of engineering drawing such as orthographic projection, sectional view, isometric and oblique drawing at the secondary level. the learning strategy consists of multiple phases beginning with introduction, concept learning, engineering drawing method, application and exercises. during introduction, students will be exposed to an overview of the topic followed by learning of specific concepts. the system provides a learning environment that allows engineering students to view objects from different angles, such as third angle projection and first angle projection as well as views of plans, side and front elevations. after learning about the concepts, students wilt be guided through the various steps in drawing methods for each topic via animations and simulations. learners are able to view any section repeatedly. examples of real application of engineering drawings were also given using graphic, animations and video. to evaluate students understanding, exercises were given at the end of each session

    工程制圖一直被認為是一門實踐性學科，其整合了幾何學、建築、力學、電子制圖等，從而將理論與現實圖像聯系起來，工程制圖能為每個不同形狀、尺寸的物體提供精確的、完整的圖像.通常，即使在開放與遠程教育環境中，工程制圖的教學也是通過面對面的教學模式來進行的.由於其特殊性，一些學習者可能難以想象並解釋這些圖像.然而，尖端的技術使得可以通過在線的方式加強工程制圖的學習.研究者基於建構主義模式開發了一個面向工程制圖教學和學習的網路系統.該系統適用於幾種工程制圖，例如展開圖、刻面圖、等角圖和斜角圖.學習過程包括導論、概念學習、工程制圖方法，以及應用與練習等階段.在導論階段，系統為學習者提供了專題簡介，然後是概念學習階段.系統所提供的學習環境允許工程專業的學生從三維透視、一維透視、平面圖、側立面、正立面等不同角度來觀察物體.經過概念學習階段后，系統將引導學生通過動畫和模擬學習每個專題中制圖方法的不同步驟，學習者也能重復觀察任何剖面.另外，還通過圖像、動畫和視頻等方式展示真實的工程制圖應用案例.最後，為了評價學生的理解能力，在每部分內容後面都附有相關的練習
  9. In dtc system, the concept of space vector is introduced to analyze and control the ac motor, the electromagnetic torque and flux are calculated and controlled in the stationary coordinate, and the optimal pwm gating signals are generated to control the inverter to acquire high dynamic torque according to the output of the bang - bang regulators

    直接轉矩控制採用空間矢量的概念來分析三相異步交流電動機的數學模型和各物理量，直接在靜止坐標系下計算與控制交流電動機轉矩和磁鏈，藉助于離散的兩點式調節產生pwm信號，直接對逆變器的開關狀態進行最佳控制，以獲得轉矩的高動態性能。
  10. Based on the pwm technology ( the style of traced sin current ) with fixed switch frequency, a sin subdivided driving system for three - phase hybrid stepping motor has been built

    基於固定開關頻率型正弦電流跟蹤pwm技術，採用軟硬體結合的方式完成三相混合式步進電動機正弦波細分驅動系統的研製。
  11. On the base of the research result mentioned above, a novel three - phase combined asi is proposed hi this paper, which is made up by three single - phase asi

    在以上對單相逆變器研究工作的基礎上，進一步研究了正激直流環節三相組合式軟開關逆變器。
  12. This article is to perform a basic research on integrated product development ( ipd ), which is the latest r & d management style that has been paid more and more attention in the high - tech industry in recent years. first, the basic principle and fundamental frameworks of ipd are demonstrated in brief. secondly, series of research were conducted on ipd - related organization, decision - making audit, r & d process, key actions at each stage and the technical evaluation

    本文目的在於對近幾年來在國內外高科技行業倍受關注的一種全新的研發管理模式-集成產品開發進行初步探討，首先介紹集成產品開發的基本原則、基本框架；然後針對與該管理模式有關的組織架構、決策評審程序、開發流程、各階段主要活動、技術評審的等內容開展系列研究；最後，就集成產品開發模式的推進過程中的風險進行初步探討。
  13. Based on elaborating the theoretical basis of fiscal agricultural support and its objective necessity in china, firstly, this paper gives some positive analyses on china fiscal agricultural support size, support patterns and support efficiency since reforming and opening to outside by trend analysis method, econometric analysis method and comparative research method. then relative economy theories are introduced to give a further analysis on institution factors and behavior factors of interested parties, which impact on government ' s fiscal agricultural support action and support efficiency

    本文在詳盡闡述財政農業支持的理論依據和我國財政農業支持客觀必然性的基礎上，首先運用趨勢分析方法、計量經濟學分析方法以及比較研究方法對改革開放以後我國財政農業支持規模、支持方式和支持效率進行了實證分析；然後，進一步運用相關的經濟學理論對影響我國政府財政農業支持行為和支持效率的制度因素和利益相關者行為因素進行了經濟學分析。
  14. This model makes it possible to treat the complete power electronic main circuit and motor system together, and it is suitable for analyzing any induction motor drive circuit configurations with arbitrary conduction patterns

    該模型能對各種不同結構、不同開關模式的逆變器驅動的異步電機傳動系統進行模擬，適用於電機的不同運行模式。
  15. This article discusses the actuality and the growing course of home news - magazine via case study, meanwhile, analyses on the markets from audience, advertisement, capital and content, which is based on the frame of marketing journalism theories. after research, we have made some conclusions, standing for the news - magazine : the audience market is full of potential, needing further exploitation ; the advertisement market still has space to develop by enhancing the consciousness and the power of working so as to improve the payoff mode ; the capital market will be full swing, running to logos and mature, therefore, it will be propitious to the developing of news - magazine ; the content market needs to make conformity, establishing special service organization, li ke magazine especial article union, also forms the content - exchange flat by internet, at the same time, consummates related rules for activating content market

    本文運用實證研究的方法，對國內新聞類雜志的現狀及發展歷程進行總結和研究，並根據市場新聞學的基本框架，著力對中國新聞類雜志的受眾市場、廣告市場、資本市場和內容市場進行分析：新聞類雜志面臨的受眾市場極具潛力，亟待進一步的開發和培育；它面臨的廣告市場具有較大的發展空間，需要加強廣告經營的意識，並加大經營力度，以改善盈利的模式；新聞類雜志面臨的資本市場將進一步保持活躍並趨向理性，從迷茫中走向成熟，資本的進入有利於新聞雜志的發展和壯大；最後，新聞類雜志的內容市場需要從分散走向整合，建立雜志特稿社等專門的服務機構，利用網路形成內容資源交易平臺，並逐步健全相關的市場規范以激活內容市場。
  16. Combinations of igbts controlled by four - step current commutation algorithm, was implemented by the cpld, which was also forecasted and validated by the simulation and experiment

    為進行對矩陣式變換器系統的實驗研究，採用cpld （復雜可編程邏輯器件）實現了igbt組合雙向開關的四步換流邏輯控制，並通過模擬和實驗進行了預測和驗證。
  17. The paper introduced the fundamental knowledge related to the subject, studied the component and architecture, and constructed the domain component library based on the constructing process and arithmetic in the domain component library. then the arithmetic of retrieval and matching have been discussed. based on the merits of abd ( stepwise refinement ) and cbd ( building blocks method ), it described the application combined the two kinds of theory in the practice

    本文介紹了有關的理論基礎，研究了構件、構架及軟體體系結構，討論了領域構件庫的構建過程及演算法，建立了構件庫，提出了構件庫中構件查詢的檢索及匹配方法，給出了基於構架技術的逐步細化和搭建積木方式的優點，以此為基礎，進行了實際開發研究，描述了運用兩者結合的理論進行開發的過程。
  18. The development of literacy - oriented education and the basic education reform have made people deeply realize the relationship of science - technology - society. the openness and the permeation of the education condition have students developed all - around. therefore, the research on scientific literacy of chemical education in middle school has great historical meanings

    素質教育的全面實施和基礎教育課程改革與發展不斷深入的開展，使人們對科學?技術?社會關系的認識得到了進一步深化，化學教育一改過去封閉狀態，進行開放式、滲透式教育，使學生在知情意行等各方面得到全面發展。
  19. In dtc system, the concept of space vector is introduced to analyze and control the ac motor, the electromagnetic torque and flux are caculated and controlled in the stator reference frame, and the optimal pwm gating signas are generated to control the inverter according to the output of the bang - bang regulator. in this paper, the dtc system is designed based on dsp. a speed estimation method is derived detailedly and the sensorless speed close - loop control is conducted. in this system, there are some problems, such as flux drift and torque ripple. to resolve these problem, a modified flux caculation method and some measures such as speed lpf, torque slide filtering are adopted. the system performance is enhanced by these mersures

    直接轉矩控制採用空間矢量的概念來分析異步電機的數學模型和控制其各物理量，直接在定子坐標系中計算和控制轉矩和磁通，藉助于離散的兩點式調節（ bang - bang控制）產生pwm信號，直接對逆變器的開關狀態進行優化控制，以獲得轉矩的高動態性能。本文採用dsp設計了直接轉矩控制系統，詳細推導了速度估計方法，進行了無速度傳感器的速度閉環控制。
  20. China has entered wto. according to the agreement on financial services of wto and the protocol on the accession of prc, foreign financial institutions will enter the securities market of china and the chinese public companies and securities firms will go abroad, which means the securities market of china will open to a great extent and become part of the world market

    中國已經成為wto的正式成員，按照wto有關金融服務貿易協議與中國入世的議定書，外國金融機構將會逐步進入中國證券市場，中國的上市公司、證券公司等主體也將走向國際市場，這意味著中國證券市場最終將實現全面開放，融入世界市場中。
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