delta current 中文意思是什麼

delta current 解釋
三角接法電流
  • delta : n. 1. 希臘語字母表第四字母〈Δ,δ〉。2. (河流的)三角洲;三角形物。3. 〈D-〉 通訊中用以代替 d 的詞。
  • current : adj. 1. 通用的,流行的。2. 現在的,現時的,當時的。3. 流暢的;草寫的。n. 1. 水流;氣流;電流。2. 思潮,潮流;趨勢,傾向。3. 進行,過程。
  1. Some factors affecting the alluvion and erosion of the yellow river delta are given and analyzed, including human activities, global warming and sea level rise, deep structure, deposits in the delta, local climate, some ocean factors such as current, wave, tide

    此外,本文還分析了地質構造、沉積相和沉積物、氣象條件、海洋動力、海平面升高、人類活動等因素對黃河三角洲的沖淤演變的影響。
  2. Materials in cityu library s prd collection include books, reports, periodicals, newspapers, press clippings, statistical year books, annual reports, pamphlets, maps, databases on either cd - roms or computer discs, microforms and other ephemeral materials in all subject areas relating to the past, current position and projected growth of the pearl river delta region of china

    城市大學圖書館內的珠江三角洲特藏書庫收藏有書籍、報告、期刊、報章、剪報資料、統計年報、年報、小冊子、地圖、電腦磁碟或唯讀光盤資料數據庫、縮微膠卷,及一些零散的資料。涉及科目及范圍廣泛,舉凡有關珠江三角洲地區的過往、現在及未來的發展動向和各方面的資料,均有收納,尤以第一手及參考性資料為主。
  3. Introduce a pilot emissions trading scheme among power plants in hong kong and guangdong to optimise the use of resources in the reduction of emissions in the same air shed as part of our current programme with the guangdong provincial government to improve air quality in the pearl river delta region

    在香港與廣東省的發電廠之間進行排污交易試驗計劃,以期善用資源,在同一空氣域減少廢氣排放。這是與廣東省政府改善珠江三角洲空氣素質計劃的一部分。
  4. The controller includes two control loops which are outer speed loop ( variable parameter pi adjustment ) and inner current loop ( single - chop current delta - control ). in order to improve system performances, design of digital control system based on dsp is presented. the proportional parameter and integral parameter can be obtained through the design

    整個系統採用變pi參數轉速調節(外環)與單斬電流滯環調節(內環)相結合的雙閉環控制方式,為了得到既快速又穩定的恆速系統,本文還給出了基於dsp的雙凸極永磁電機數字控制系統的設計方案,通過此設計方案可以得到轉速環的比例參數kp和積分參數ki的參考值。
  5. Connection method includes single star and double star, relaying protection method includes open delta voltage protection, differential current protection, differential protection, neutral unbalance current protection etc

    接線方式有單星或雙星接線,繼電保護方式有開口三角電壓保護、差流保護、差壓保護、中性點不平衡電流保護等幾種形式。
  6. Delta pm would like to meet other businesses and organisations that might be interested to discuss working together to help create new ideas that can support your current marketing and promotional strategies

    三角洲時要滿足企業和其他組織可以共同討論有關建立新的思路,幫助你能支持目前的銷售和宣傳策略
  7. This paper discusses the train of thought for sea reclamation planning at the estuary district of the pearl river delta based on the research on sea reclamation, combining concrete conditions of the sea area at the estuary district, surrounding circumstances of resources, as well as the state of land utilization, and from the view of protecting the existing establishments near this district, and promoting the formation of favorable ecological environment at the district and implementation of the thought step by step under current policy

    摘要通過對填海工程的相關案例研究,結合珠三角河口地區海域的具體情況、周邊資源條件及土地利用情況,從有利於保護周邊現有生產生活設施、有利於形成新的水岸生態環境、有利於在現行政策環境下分步推進等角度出發,探討在珠三角河口地區進行填海造地工程的規劃思路。
  8. Application of sedimentary simulation techniques in oil and gas field exploration - a case study about baimiao gas field in dongpu depression based on a detailed investigation about the similar research by scholars in china and foreign countries, this paper has discussed about the current status of the development of the sedimentation simulation technologies in china and foreign countries, and expounded on the principles and methodology for the study of sedimentation simulation. with the fan delta at es2lower, es3upper, es3middle and es3lower of baimiao gas field in pudong depression as the object of this research, this dissertation has carried out a systematic study about the processes of formation and laws of evolution of the fan delta, and elucidated the characteristics about the distribution of sand at different stages

    《沉積模擬技術在油氣田勘探開發中的應用?以濮陽凹陷白廟氣田為例》一文在詳細調研國內外同類研究的基礎上,論述了沉積模擬技術國內外的發展現狀,並闡述了開展沉積模擬研究的原理、方法,以濮陽凹陷白廟氣田es _ 2 ~下、 es _ 3 ~上、 es _ 3 ~中、 es _ 3 ~下扇三角洲為研究對象,系統研究了扇三角洲的形成過程及演變規律,指出了不同時期砂體分佈特徵,為儲層預測提供了一套行之有效的方法體系。
  9. Chapter 3 of this dissertation has discussed about the current status of the study about fan delta by scholars in china and foreign countries, the major types, sedimentation models and sedimentation characteristics of fan delta, and has since laid a solid foundation for the development of the study about the sedimentation simulation about the fan delta in baimiao gas field

    本論文第三章論述了國內外扇三角洲研究的現狀、扇三角洲的主要類型、扇三角洲的沉積模式、扇三角洲的主要沉積特徵,為開展白廟氣田扇三角洲沉積模擬研究奠定了基礎。
  10. The paper points out that to fulfil the coordinated development of industrilization and urbanization, guangxi can learn from home and abroad, such as to expand the township - owned enterprices and private enterprices like the south of jiangsu and zhejiang, to develop foreign - oriented economy like zhujiang delta, to stress the guide of government like japan, to develop the market economy and pay attention to transportation like the united state, and so on. and guangxi should keep a food hold on the current foundation, follow the market and give free rein to the policies, instruction function of government, and enlarge the size and capacity of present cities, adjust the industrial structure, develop non - agriculture, and at the same time make full use of the macro - policies of autonomous region to innovate the systems and some prolelems need concerning

    本文提出廣西實現工業化和城市化的協調發展可以借鑒蘇南、浙江發展鄉鎮企業、民營企業,珠江三角洲發展外向型經濟,日本重視政府的引導,美國發展市場經濟、重視交通建設等國內外的經驗,立足於廣西的現有基礎,以市場為導向,發揮政府的政策指導功能,對現有城市進行擴容增量,調整產業結構,發展非農產業,同時充分利用「自治區」的宏觀層面政策進行制度創新,以及需要注意的一些問題。
  11. The solving steps are as follows : the field is divided into three regions by the cylindrical surface of the finite - length cylinder and the location of the delta - coils. because " the surface current source is placed at the interface, the non - homogenous restricted equation on the magnetic vector potential is transformed into the homogenous helmholtz equation. by using the method of separation of variables to solve equation and according to the interface conditions and the condition at infinity to determine the unknown constants, the expressions for the magnetic vector potential of the three regions are solved out

    在求解過程中,假定放置式圓柱線圈是由無窮多個對稱圓環線圈密饒而成,首先求解含有有限長磁芯的通電對稱圓環線圈的電磁場:以有限長圓柱磁芯的側面和圓環線圈所在圓柱面為分界面將場域劃分為三個小區域,由於場源放置在內邊界面上,使得關于矢量磁位的非齊次約束方程轉化成齊次亥姆霍茲方程,利用分離變量法求解,根據分界面鄭州大學碩十研究生畢業論文摘要條件以及無限遠條件確定待定常數,從而得到各場區矢量磁位的表達式。
  12. Then, using the principle of superposition and integrating the delta - coils, we can obtain the expressions for the magnetic vector potential caused by the cylindrical coils carrying current

    然後,應用疊加原理,並對圓環線圈進行積分,求得各場區通電圓柱線圈的矢量磁位表達式。
  13. Chapter takes shunde district of foshan city, guangdong province in the pearl delta with well - developed economy as the example, probe into the difficulties, methods and measures of farmland preservation at shunde. chapter. on the basis of the current situation about farmland preservation work in china and the probe of shunde ' s farmland preservation, points out that our country should take the comprehensive preservations about the whole agricultural lands including farmland, the quality of agricultural lands and the ecology environment of agricultural lands as farmland preservation goal. we must adopt these important measures except for reforming present farmland preservation measures to achieve the goal of protecting agriculture lands : the first one is canceling the power of governments in the localities obtaining profits by dealing with the nationalized land property, that means canceling the motive of the governments in the localities obtaining profits though sailing the power of using land ; the second one is improving the utilization ratio of constructing lands and reducing the amounts of increases in constructed lands by the land market constructing

    第一章,從耕地保護入手,分析了耕地保護的理論依據及其與我國社會經濟可持續發展之間的關系;第二章,在分析我國耕地資源現狀、問題的基礎上,就我國現行耕地保護措施中存在的問題、原因作了較深入的分析;第三章,以位於珠江三角洲經濟較發達的廣東省佛山市順德區為例,探討其耕地保護的難點、方法和措施;第四章,根據我國耕地保護工作的現狀和基於順德耕地保護的探索,提出我國的耕地保護目標應是將包含耕地的整個農地、農地質量和農地生態環境的綜合保護,而保護措施除改進現有的耕地保護措施外,其它應採取的重要措施一是取消地方政府處置國有土地資產獲取收益的權力即取消地方政府以賣地求發展資金的原動力,二是通過土地市場建設提高建設用地的利用率、減少建設用地新增量從而達到保護農地的目的。
  14. The important study is the electric parameter measurement system which is achieved with sigma - delta a / d converter and dsp " sampling to three phrase voltage and current. its function includes the measurement of current, voltage, frequency, phrase, power, factor, active power and energy, reactive power and energy

    本文主要研究了用? a d轉換器和dsp處理器對工頻三相電壓、電流進行數字采樣,再用數字低通濾波器實現對三相電參數進行測量的測量系統。其主要功能包括對電流、電壓、頻率、相位、功率因數、有功功率、有功電能、無功功率、無功電能等測量,並具有測量數據并行輸出介面。
  15. Current coordinates, delta hotel 4045

    目前方位: "三角州旅館4045號
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