置零技術 的英文怎麼說

中文拼音 [zhìlíngjìshù]
置零技術 英文
null placing technique
  • 置 : 動詞1. （擱; 放） place; put; lay 2. （設立; 布置） set up; establish; arrange; fix up 3. （購置） buy; purchase
  • 零 : Ⅰ數詞1 （零數） zero2 （數的空位） zero sign （0）; nought 3 （表示沒有數量;無） nil; nought 4 （...
  • 技 : 名詞（技能; 本領） skill; ability; trick; technique
  • 術 : 術名詞1. （技藝; 技術; 學術） art; skill; technique 2. （方法; 策略） method; tactics 3. （姓氏） a surname
  1. Disigning coolant channel on the firebox of liquid rocket engine to loxodrome ( equal - angle helix ) groove can improve firebox coolant capability greatly. because the width dimension of loxodrome groove is narrow and the depth is deep, some machining methods are incapable, such as end - milling or electrochemistry. according to the peculiarities, a cnc disk - cutter - milling method which is composed of five motion axes with four simultaneously interpolated ones is researched. because most firebox generatrix is composed of complex curves, it is very difficult to get cnc cutting program with manual means. in order to deal with the problem, the loxodrome mathematics model is studied, and an auto - programming software system is developed. the software system can generate cnc cutting program of loxodrome on many kinds of turned surface. the constriction - distension segment of firebox is the most representative workpiece. the sharp changing of its generatrix slope makes loxodrome milling difficult. with the theory analyzing and practice cutting experiment, some applied techniques, which include milling mode and direction, choosing cutter diameter and cutting start point setting, are developed. adopting the technology above, tens regular workpiece have been manufacturing. the two - year manufacture practice has confirmed the validity and feasibility of developed loxodrome coolant channel milling method. the developed technology is also worth to be referenced to other similar workpiece

    將液體火箭發動機燃燒室的冷卻通道設計為斜航線（等傾角螺旋線）槽形，可以大幅度改善燃燒室的冷卻性能.斜航線冷卻槽的槽寬尺寸較小而槽深尺寸較大，所以無法使用棒銑刀銑削、電化學等加工方式.針對這些特點，提出了五軸控制、四軸聯動的數控片銑刀銑削加工方法.由於燃燒室外表面的母線輪廓復雜，手工編制數控加工程序難度大.為了解決數控加工程序的編制問題，研究了斜航線的數學模型，開發了自動編程軟體系統.使用該系統，可以生成多種母線輪廓回轉體外表面上的斜航線數控加工程序.燃燒室收斂-擴張段的母線斜率變化大，加工難度大，是斜航線冷卻通道加工的最典型工件.經過理論分析和實際切削實驗，研究了針對該類型工件的片銑刀直徑選擇、銑削方式和方向、刀具調整和起刀點的設置等多項實際的加工方案.採用上述的一系列技術，已經成功地加工了數十個合格工件.經過兩年多的實際生產過程應用，驗證了所開發的斜航線冷卻通道加工方法的正確性和可行性.這些加工技術的研製成功，對其他相似類型零件的加工亦具有參考意義
  2. For solving all these problems, through applying visualization technology of engineer design to the design of oil - feed unit, this paper constructs the entity model of oil - feed unit, establish the three - dimensional standard parts, implement the semi - automated and automated connect, and produce automatically the 2d or 3d part drawings. using this system the designer can observe and evaluate the space model of the unit, discuss the feasibility of space layout and the probable errors, so that the decision can be optimized and the competition of enterprise can be improved greatly

    針對船舶供油單元設計、製造中的上述問題，本系統擬將工程設計可視化技術應用於船舶供油單元的設計，構造船舶供油單元的三維實體模型，建立三維標準件庫，實現管路的自動、半自動連接，自動生成管路的二維和三維零件圖，使得設計人員在設計階段就可觀察、評判單元的空間模型，直觀地探討空間布置的合理性和存在的問題，從而幫助決策的優化，提高企業競爭力。
  3. A novel low mechanical hysteretic ceramic capacitive pressure transducer has been made, by using of ceramic sealing technology ; integrate circuit ( ic ) technology and thick film plane fixing circuit technology. this transducer is made of a deformable ceramic diaphragm and a ceramic base plate, between which has an air cavum. a coaxial gold electrode was fired onto the diaphragm and the base plate

    本文利用新型陶瓷技術、集成電路技術和厚膜平面安裝電路技術，採用零力學滯后的陶瓷和陶瓷密封材料進行設計製造了一種非充液乾式的電容式壓力傳感器，該壓力傳感器由較厚的陶瓷基體和較薄的陶瓷膜片構成，中間形成一空氣介質腔，在基座和膜片之間內置同軸的雙電極，組成兩個電容，當膜片承受壓力時發生位移，使電容量產生變化，經後置處理電路直接轉換為可輸出的直流電壓信號。
  4. The soft switching, phase - shifted pwm and bi - directional dc - dc converter hang together, depress circuit switching loss and noise effectively, which provide condition to increase switch frequency, efficiency and reduce size and weight for the converter ; at the same time, it is proved the converter can achieve zvs in larger load variation, and the converter has the virtue of structure compact, voltage and current stress small such as ordinary hard switch converter

    該變換器把軟開關技術和相移控制pwm技術以及雙向dc - dc變換器技術有機結合在一起，有效地降低了電路的開關損耗和開關噪聲，為變換器裝置提高開關頻率、效率以及降低尺寸及重量提供了良好的條件;同時，能拓寬零電壓開關的范圍，使變換器在較寬的負載變化范圍內都能實現軟開關。
  5. Technical specification for zero sequence current direction protection equipment

    零序電流方向保護裝置.技術條件
  6. The thesis has done the widespread investigation and study to the domestic and foreign ’ s technologies of analogy low voltage and low power, and analyzes the principles of work, merts and shortcomings of these technologies, based on the absorption of these technologies, it designs a 1. 5v low power rail - to - rail cmos operational amplifier. when designing input stage, in order to enable the input common mode voltage range to achieve rail - to - rail, it does not use the traditional differential input pair, but use the nmos tube and the pmos tube parallel supplementary differential input pair to the structure, and uses the proportional current mirror technology to realize the constant transconductance of input stage. in the middle gain stage design, the current mirror load does not use the traditional standard cascode structure, but uses the low voltage, wide - swing casecode structure which is suitable to work in low voltage. when designing output stage, in order to enhance the efficiency, it uses the push - pull common source stage amplifier as the output stage, the output voltage swing basically reached rail - to - rail. the thesis changes the design of the traditional normal source based on the operational amplifier, uses the differential amplifier with current mirror load to design a normal current source. the normal current source provides the stable bias current and the bias voltage to the operational amplifier, so the stability of operational amplifier is guaranteed. the thesis uses the miller compensate technology with a adjusting zero resistance to compensate the operational amplifier

    本論文對國內外的模擬低電壓低功耗技術做了廣泛的調查研究，分析了這些技術的工作原理和優缺點，在吸收這些技術成果基礎上設計了一個1 . 5v低功耗軌至軌cmos運算放大器。在設計輸入級時，為了使輸入共模電壓范圍達到軌至軌，不是採用傳統的差動輸入結構，而是採用了nmos管和pmos管並聯的互補差動輸入對結構，並採用成比例的電流鏡技術實現了輸入級跨導的恆定;在中間增益級設計中，電流鏡負載並不是採用傳統的標準共源共柵結構，而是採用了適合在低壓工作的低壓寬擺幅共源共柵結構;在輸出級設計時，為了提高效率，採用了推挽共源級放大器作為輸出級，輸出電壓擺幅基本上達到了軌至軌;本論文改變傳統基準源基於運放的設計，採用了帶電流鏡負載的差分放大器設計了一個基準電流源，給運放提供穩定的偏置電流和偏置電壓，保證了運放的穩定性;並採用了帶調零電阻的密勒補償技術對運放進行頻率補償。
  7. The system is based on chopper constant current drive technique, according to the top level design idea, adopting advanced specical subdivision control integrate circuit and powerful function 80c196kc to organize the system frame, desiging the minimum system of single - chip microcomputer, multifunction i / o interface circuit, relay switch circuit, keyboard and display circuit, multifunction digital setting interface circuit and so on, utilizing the hso and hsi interface circuit which are owned by this single - chip microcomputer exclusively and its powerful command system to realize dual - degree switch control, automation orientation, automatically searching zero position, locking machine when stopping, frequency to set digitally, automatically adjusting speed through changing frequency, swithing subdivision or squarewave control, on the basis of above, the system also have the function of running according to the setting steps and the frequency, voltage and current to display through the led, etc

    系統基於斬波恆流驅動技術，按照頂層設計思想，採用先進的專用細分控制電路和功能強大的80c196kc單片機來組建系統構架，設計了單片機最小系統、多功能i o介面電路、繼電器切換電路、鍵盤顯示電路和多功能數字設定介面電路等，利用該單片機獨有的hso和hsi介面及其強大的指令系統，實現了雙余度混合式步進電動機的余度切換控制、自動定位、零位自動搜索、停機鎖定、數字化頻率設定、自動調頻變速控制、細分方波切換控制，在此基礎上，該系統還設有按預置步運行、 led頻率電壓相電流顯示等功能。
  8. To realize the research purpose of the system, this paper take full advantage of some advanced technology. product structure and configuration management related to design and manufacture is the foundation of the system ; the modularized design of the product and the standardization and versatility of the components are the premise of the customer - oriented product custom ; the transform of product modal from custom product to product structure and configuration management asks for the help of the thought and method of the quality function deployment ( qfd ). the widest customer - oriented form is internet technology, and its kem is dynamic web service

    為了實現系統的研究目的，充分利用了當前一些先進的技術：與設計和製造相關的產品結構與配置管理是本系統的基礎；產品設計的模塊化以及零部件的標準化和通用化是面向客戶的產品定製的前提；客戶定製產品構型與產品結構與配置管理當中的產品構型之間的轉換，藉助了質量功能配置（ qfd ）的思想和方法；面向客戶的最廣泛的形式是internet技術，其核心是動態web服務器。
  9. The electronic digital height gauges applydigital display technology and have the features of accuracy and efficiency. it can be reset at any position

    數顯高度卡尺採用數字顯示技術，測量精確，效率高，可在任意位置置零。
  10. Xtq computer - controlled washing and dewatering machine is an ideal equipment and best choice for washing industry because of its advantages such as washing integratedb with dewatering, little vibration due to a suspension shock absorbing device, high washing efficiency and flexible easy operation

    Xtq型全電腦洗脫二用機是工業洗滌行業的福音，具有洗脫一體化，採用懸浮式減震裝置，變頻技術，震動小，洗滌效率高，操作簡便，零活，是洗滌行業最理想、最佳的選擇設備。
  11. Manufacturer of impco gbq worldstar microfinishing machines for finishing bearing journals on rotating engine, transmission, and other load bearing components

    美國impco機床公司製造且採用其gbq技術的系列微精拋光加工機床，用來對發動機轉動件、傳動裝置和其他承載支承零件的精密軸頸進行拋光。
  12. Due to the unique, stable and live physiological properties of the iris and non - invasive to users, most stable and reliable for identification in practical applications of iris - based system, iris recognition is receiving extensive attention and becoming an active topic in biometrics. as an application - oriented research project, iris recognition integrates mathematic, computer science, optics, electronics and physiology etc. based on wavelet transform, aimed to improve the recognition performance, centered at wavelet - based iris feature representation and pattern classification, we review and explore the iris sequence image quality assessment, iris image pre - processing, iris recognition performance evaluation and several other linked topics. we mainly investigate on the principles and application methodology of wavelet transform for iris feature representation and iris pattern classification methods

    以小波變換技術為基礎，結合圖像處理和模式識別方法，設計並開發了虹膜圖像採集裝置，建立了虹膜識別演算法測試實驗平臺;重點研究了虹膜識別中的小波變換的應用基礎理論與關鍵實現技術;提出了基於小波局部模極大值的虹膜特徵表示及其多重匹配識別、基於小波多尺度信息的一維和二維虹膜紋理特徵量化表示、基於小波過零點技術的虹膜特徵表示及其規范化的部分hausdorff距離匹配識別，這三類方法能夠有效地提取虹膜特徵;基於自建的演算法測試平臺，對上述三類方法和其他三種國內外比較有影響的基於小波變換的虹膜識別方法進行了定量的性能比較和評價，通過實驗數據分析得到了有意義的結論;最後指出了小波變換技術在虹膜識別領域的研究重點與發展方向。
  13. It is one of advanced technologies used in modern radar that applying adaptive algorithms to radiation pattern of an adaptive array in order to control nulls of the beam pattern and to suppress interferential signals

    在自適應天線陣的發射模式中應用自適應演算法，控制發射波束的零點位置，以達到抑制干擾信號的目的，是現代雷達採用的先進技術之一。
  14. By using object - oriented technology, the component design was proposed, the product model and process of product configuration were established based on component ; and the product configuration design was put forward by adopting customization demand and mapping between attributes of components, the demand parameters of parts and components were set up by using product model and customization demand, and the demand parameters matching algorithm of parts and components was given

    提出利用面向對象技術進行構件設計，建立基於構件的產品模型和配置流程，利用客戶定製需求與零部件構件屬性之間的映射關系進行產品配置設計，利用產品模型和客戶定製需求建立零部件構件的需求參數，並給出需求參數匹配演算法。
  15. At the same time, beijing will construct beijing miyun electric vehicle operating experiment demonstration zone, for probing and researching the society condition and fitted infrastructure facility environment for extending the development of electric vehicle, and for groping and accumulating the practice experiment of electric vehicle running and management in local area range. presently, the demonstration zone has structured electric vehicle running company and energy company in charging of the running demonstration of electric vehicle and the management of infrastructure facility. the selected vehicle types include electric medium bus, electric site seeing bus, multi - function vehicle, etc

    據了解，廣州市電車公司在lpg綠色公交推廣工作中進程最快，今年內該公司將購置lpg車輛260輛及改造現有車輛90輛，選購30輛技術含量高的新型電車，到年底前，該公司lpg公交車將超過400輛，加上現有無污染的電車近300輛，該公司環保車輛數將達到全公司所有車輛數的23 ，明年，該公司將率先全部啟用lpg環保公交車和「零」排放電車。
  16. For vehicles not already equipped with low emissions technology, parts manufacturers are rolling out add - on components to significantly reduce air pollutants

    至於還沒有配置低排放技術的車型，零部件製造商正在推出新的配件，以明顯降低汽車對空氣的污染。
  17. Research on networked cooperative manufacturing resource optimization deployment for complex parts

    面向復雜零件協同製造的資源優化配置技術研究
  18. In many years, automobile industry of our province always is at the low - end position of value chain of the international labor division in joint investment with foreign enterprises, general development profit level is not high, competitiveness in production cost and product price are left behind in the world, so we always obtain processing profit instead of excess profit ; design and production technology of entire cars and component products are left far behind with international advanced level, development of components is severely lagging from the development of the entire cars, especially transnational companies always control procurement of components with high technical content and added value, so we have to import components with key technology

    多年來我省汽車產業在與國外企業合資中一直處于國際分工價值鏈的低端位置，總體發展利潤水平不高，生產成本與產品價格遠未達到與國際接軌的競爭實力，我們獲得的一直是加工利潤，而不是超額利潤；整車和零部件產品設計和製造工藝上同國際先進水平尚有較為明顯的差距，零部件的發展嚴重滯後於整車的發展，尤其是跨國公司一直控制著高技術含量、高附加值零部件的采購，使具有核心技術的零部件一直從國外進口。
  19. The technology of digital beamforming ( dbf ) can dramatically increase array antenna performances. these performances include fast adaptive pattern nulling, ultra - low sidelobes, closely spaced multiple beams, adaptive space - time processing, high resolution direction fiding ( df ) and increased capacity for band - limited communications systems

    數字波束形成（ dbf ）技術可顯著提高陣列天線的性能，這些性能包括：快速自適應波束置零、超低副瓣、密集多波束、自適應空時處理、高分辨測向和大容量有限帶寬通信等等。
  20. Facing the rapid response manufacturing of part, this paper presents the concept of feature module. starting with the research of module feature model, the part process generating and the modular fixture rapid configuring technologies basing on feature module is studied systematically, which support the rapid process preparation

    論文面向零件快速響應製造，提出了特徵模塊概念，從研究模塊特徵模型入手，系統地研究了基於特徵模塊的零件工藝的生成和模塊化工裝快速配置等技術，支持零件的快速工藝準備。
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