電位參考點 的英文怎麼說

中文拼音 [diànwèishēnkǎodiǎn]
電位參考點 英文
potential reference point
  • : Ⅰ名詞1 (有電荷存在和電荷變化的現象) electricity 2 (電報) telegram; cable Ⅱ動詞1 (觸電) give...
  • : Ⅰ名詞1 (所在或所佔的地方) place; location 2 (職位; 地位) position; post; status 3 (特指皇帝...
  • : 參構詞成分。
  • : Ⅰ動詞1 (考試; 考問) examine; give [take] an examination test or quiz 2 (檢查) check; inspect3...
  • : Ⅰ名詞1 (液體的小滴) drop (of liquid) 2 (細小的痕跡) spot; dot; speck 3 (漢字的筆畫「、」)...
  1. The industrial development in shandong should be located on the above - mentioned superior industries, known as the industries which is " inoculated " by the high and new technology and upgraded such as the leading industry like mechanism, electron, petrifaction and etc, or the traditional industry like energy source, textile, foodstuff, metallurgy and etc, or the high and new technique industry like electronic message, biological engineering, ocean and etc. correspond with the development and grandness of these strategic industry, the famousbrand products including the products of the household appliances, the utility type sedan, the refine chemical industrial products, computer software, halobios pharmacy, industrial revelation ware and etc should be created gradually, and then improve the structure of the industrial products

    山東省工業發展應定於上述優勢產業,即經過高新技術「嫁接」和換代升級的機械、子、石化等主導產業,能源、紡織、食品、冶金等傳統產業,子信息、生物工程、海洋等高新技術產業。相應于這些戰略產業的發展和壯大,逐步創造出包括家、經濟型轎車、精細化工產品、計算機軟體、海洋生物制藥、工業新材料製品等在內的名牌產品,並進而改善工業產品結構。隨著中國加入世貿,為應對經濟全球化的挑戰,關于產業競爭力的研究成為一大熱,但以往的研究都側重於從國家或企業的角度慮問題,本文試圖從區域經濟的角度研究產業競爭力,探索提升產業競爭力的途徑,為研究中國產業國際競爭力提供借鑒和
  2. Measures to locate reference points, and drills and taps holes as needed to mount assemblies, components and parts, using hard tools and power tools

    測量定置,根據安裝裝配、組件和零件的所需進行鉆孔和打洞。會使用機械工具和力工具。
  3. Because central potentials of four y windings in 12 - phase generator are not equal each other and there is no common reference inside the generator, it is difficult to identify the on / off of rectifying elements. in this paper, by using a mathematical model with line voltage substitute for phase voltage, the problem that there is no common reference in the 12 - phase generator with rectifier is solved. based on results of the studies on small prototype, 920kw charging generator applied in a submarine is improved in design, and therefore power oscillation with high magnitude when two generators are operating in parallel

    由於十二相發機中四個y繞組的中不等,機內部沒有公共,從而在判斷整流元件導通時,不能象三相同步發機整流系統那樣認為陽極最高或陰極最低的整流元件導通,本文採用了以線壓代替相壓建立十二相整流發機的數學模型,從而解決了十二相發機無公共的問題。
  4. After discussing the movement of open access and institutional repositories, the author seeks to promote innovative, creative, and affordable ways of sharing scholarly findings and tries to build common understandings of the challenges presented by electronic scholarly communication and to generate strategies for transforming the collection development

    最後提出關注學術傳播的變遷、形塑子館藏管理的新觀、邁入館藏內容管理的新思維、促進校園知識管理的集成、置身於數化學術出版的一環、重視信息取用系統的便利性、培育圖書館員的新技能以及強化圖書信息學的課程等建議,供同道
  5. Introduced by prestressed pier in the gate of spillway in xiao xia hydroelectric power station, the text reasonably established 3 - d finite elements mechanic model by the advanced finite elements popular in the world which can expediently impose tension of anchor funicular at its place. it also considered possible diversified combination of loading, and indicated that the effect of its prestressed action is fruitful compared with its conventional counterpart by study of mechanic calculation in comparison. as a result, it vastly improved burdening state of pier. by analysis of 3 - d finite element method, it also gained the stress result indifferent boundary conditions such as breast wall joint support and fixed support, and the displacement result in diversified loading combination. those results gained the instructive and reference value in design of prestressed pier

    本文結合黃河小峽水站泄洪閘預應力閘墩這一工程實踐,採用國際上已成熟的有限元方法,合理地建立了預應力閘墩的三維有限元模型,該模型可方便地按預應力錨索的施加錨索預張拉力,慮了可能發生的多種荷載工況組合,並與無預應力閘墩結構進行了對比分析研究,指出其預應力效果是明顯的,可以大大改善閘墩結構的受力狀態,通過三維有限元分析,還得到了胸墻簡支、固端不同情況下的應力成果和各荷載下的移成果,這些成果的取得對預應力閘墩的設計具有一定的指導和價值。
  6. In order to study on ultra short pulse precisely, some measurement methods are established, such as second order autocorrelation, frequency - resolved optical gating ( frog ), self ? referencing spectral phase interferometry for direct electric reconstruction ( spider )

    為了準確研究超短脈沖,長期以來,人們已經形成了二階自相關法、頻率分辨光學開關法( frog ) 、自光譜相相干場重建法( spider )等測量方法,並各具特
  7. Based on some discussions on the mathematic model set up for the cathodic protection potential field, a two - dimensional boundary element method ( bem ) is developed, and by using which, a study on the shielding effect resulted from some typical inner structures such as the reinforcing elements and the partition walls with man holes on distribution of potential and current density in the cathodic protection is performed. the investigated parameters which affect the shielding effect in the calculating model include : the height and thickness of the reinforcing elements, the distance between the anode and the reinforcing elements, and the diameter of man hole on the partition walls, and so on

    本文在討論了陰極保護場問題的數學模型的基礎上,以二維邊界元法對陰極保護問題中的流密度分佈進行了模擬計算,重對船舶壓載艙中的典型結構如加強筋、人孔等在陰極保護中所產生的屏蔽效應進行了分析和研究,通過對不同高度、厚度的擋板及不同孔徑的帶孔板所產生的屏蔽效應進行模擬計算,首次得到了一些對實際工程設計具有重要意義的見解。
  8. In order to minimize the torque ripple of srd, the dissertation further design the intelligent torque control system, introduce the instantaneous torque control strategy based on torque distribute function, which is implemented by the flux linkage controller of srm. furthermore, considering the multi control parameter, the article also found the rotor position angle controller based fuzzy logic so as to optimize the whole control system and effectively reduce the torque ripple

    為了降低srd系統的轉矩脈動,本文在所建模型的基礎上,設計出智能化轉矩控制系統,利用轉矩分配函數,提出瞬時轉矩控制策略,同時採用磁鏈控制器來實現;慮到srd具有可控數多的特,本文同時建立了優化轉子置角的模糊控制器來達到智能化轉矩控制的目的,從而有效抑制sr機的轉矩脈動。
  9. The design concept, system composition, system structure and software main feature of electronic drawing files network management system were introduced so as to comprehensively use the network resources and enhance the level of project files management of the exploration design units for reference

    摘要介紹了子圖檔網路管理系統的設計思想、系統組成、系統結構以及軟體主要特,為勘測設計單綜合利用網路資源、提高工程檔案信息化管理水平提供
  10. At last, the experiment result proved the effectiveness of the spectrum rebuilding technology. the experiment result show that the wavelength detection accuracy is improved by an order of magnitude using the spectrum rebuilding technology compared with that obtained from direct peak search. some other schemes to enhance the accuracy are illustrated

    最後列舉了其它幾種提高測量精度的方案,包括關鍵器件可調諧濾波器的置變化提高信噪比,調整探測器pinfet的輸出壓的零以提高a / d採集卡的利用率,以及採用系統消除系統誤差造成的波長漂移。
  11. 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機的數學模型,在此基礎上將異步機的數學模型與直流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流型觀測模型;對三平逆變器的路拓撲、工作原理、中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。本文對異步機的矢量控制與三平逆變器之間的介面進行了詳細的研究,包括: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。在壓矢量的合成時,選擇只包含p 、 o狀態的空間壓矢量作為起始矢量,解決了扇區切換時的矢量突變問題。
  12. A point considered to be at nominal zero potential and to which all other potentials in the circuit are referred, often, but not always, connected to the actual surface of the earth ; as a verb to connect to a ground. also called earth

    路中的一個,該作為標稱的零,其它所有均相對于該而定。經常,但並非總是,將該直接連接到地。作為動詞,指連接到地線上的過程,也稱作接地。
  13. Then the optical path difference can be obtained with psi algorithm and to use the phase value for each pixel to determine a height value for each pixel. a primary advantage of psi is its high precision. with careful control of environmental conditions, measurement precision to the nanometer scale or below is possible with psi

    它的基本測量原理是,通過攝像系統( ccd )接受到的干涉圖中空間坐標已知的各個像素的光強信號,在壓晶體驅動光程有序變化時,採集到多幅干涉圖的光強信號,由移相干涉法,由光強值得到被測光程差值(相值) 。
  14. In this article, the electric power generating equipment manufacturing of dfem ( dongfang electrical machinery co. ltd. ) is used as the project management model, and it has been analyzed, studied and practiced with respect to product feature, management system, organization, market prospect, etc., so as to expound the project management mode, diagnose problem in the project management at present, and submit the specific proposal for the development of project management in dfem. they have the practical significance for deepening internal reformation and development of dfem resulting from them

    西南交通大學碩士研究主學論文4本文以東方機股份有限公司生產製造發設備為項目管理模型,從產品特、管理體系、組織機構、市場前景等多方面加以分析、研究和實踐,闡述適合中國國情和傳統企業條件下的項目管理模式,診斷了目前項目管理中存在的問題,為項目管理在東方機得到發展提出了具體的建議方案,對東方機的深化內部改革和發展具有實際的意義。
  15. It ' s an interactive feature that lets visitors key in job criteria such as location, title, and salary, then e - mails them when a matching position is posted in the database

    譯文:這是一種互動性質的搜索器,訪客可以鍵入自己的求職要求,比如地、職務和薪水,數據庫里張貼出相應的職時就可以把子郵件發出去。
  16. The paper is the project named " theory of dynamic precision synchronization traverse and research of realization methods for linear servo dual position loops system ( no - 50075057 ) " as the background, which is supported by national natural science foundation of china drive directly by linear permanent magnet synchronous ac motor, the controlled plant eliminates middle drive parts and avoids the effects of the mechanical transmission chains from rotary motions to linear ones

    本文以國家自然科學基金資助項目《直線伺服雙置環動態精密同步進給理論和實現方法研究( no 50075057 ) 》為背景,針對直線同步進給提出了一種新的控制方案:模型自適應控制。機床採用永磁直線同步動機直接驅動,省掉了中間的傳動環節,消除了機械傳動鏈的影響;又因永磁直線同步動機採用高能永磁體,具有磁推力強度高、損耗低、氣時間常數小、響應快等特
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