指狀線圈 的英文怎麼說
中文拼音 [zhǐzhuàngxiànjuān]
指狀線圈
英文
accordion coil-
According to the actuality of the present research on ct, we bring forward a new design scheme based on the rogowski coil, in this design, the protection in short circuit failure and the measurement in normal condition are both fulfilled. it can also communicate with the computer through the communicating interface, sending the parameter of the system current and accepting the instruction
本文在考察了國內外電流互感器發展現狀的基礎上，提出了一種基於rogowski線圈的電流互感器，該互感器具有正常電流的測量和短路故障時的保護功能，並且預留了與上位機的通訊介面，接受上位機的指令並向上傳送電網的電流參數。In allusion to the present situation of spatial structure of dunhuang circle and the fact of tourism development, the study is on spatial structure optimization and puts forward optimizing mode on the developing tenet of sustainability the thesis includes six chapters, among which the third chapter, fourth chapter and fifth chapter are the major body. in the foreword, it expounds the background, foundation, purpose, meaning and adoptive technical courses of the selecting thesis ' s topic. in the first chapter, it summarizes main theories of tourism spatial structure and the present researches of tourism circle from study of theory and demonstration
引言部分主要闡述了論文選題的背景、依據、目的和意義以及擬採用的技術路線；第一章總結了旅遊空間結構當前的主要理論，綜合論述了當前旅遊空間結構的研究進展，對旅遊圈的研究現狀從理論研究和實證研究兩個方面進行了概述；第二章介紹了敦煌旅遊圈的總體概況，分析了構建敦煌旅遊圈的動力因素和制約因素；第三章採取層次分析法和模糊聚類法對敦煌旅遊圈內旅遊資源進行了分析評價；第四章採用客源平均中心點、客源吸引半徑、地理集中度指數等方法對敦煌旅遊圈客源市場進行了分析評價；第五章在前幾章分析評價的基礎上，分析了敦煌旅遊圈的空間結構，提出了敦煌旅遊圈的空間優化模式，並提出了敦煌旅遊圈的發展原則及具體措施。Both absolute difference and relative difference among per capita gdps of 14 cities ( prefectures ) increased year by year since 1990 - the absolute difference increased linearly - - and this increased tendency would n ' t change in short period. by counting the discrete and ratio between per capita gdp of every city ( prefectures ) and that of the total province, the relative development speed of every region and the industrial structure of every region, i think that the characteristic of the spatial structure of regional economic difference in hunan is that the area along the beijing - guangzhou railway line in the east of hunan developed fast, while the vast area in the west of hunan developed slowly, so the regional difference increased constantly. on the difference background between the east and the west of hunan, there is the difference between central region and fringe region, for one thing it shows ring difference, namely chang - zhu - tan internal ring, surrounding chang - zhu - tan medium ring, the outermost external ring, the most underdeveloped counties lie on the fringe and mountain regions in the west, south and east of hunan, for another it displays that the peripheral regions of 13 prefectural cities are more developed than the other
文章還建立了反映基礎設施水平、經濟發展水平、社會發展水平的23個主要指標構成的湖南省區域差異衡量指標體系，在此基礎上，藉助spss統計分析軟體，運用主成分分析法，對湖南省14個市州經濟發展綜合水平的差異狀況進行了研究，結果表明：長沙市的經濟發展綜合水平在14個市州中遙遙領先，反映了湖南省經濟發展空間結構的「單極主導」特徵；通過計算人均gdp的標準差和標準差系數，研究區域經濟差異的總體水平及區域經濟不平衡發展的演變趨勢，發現90年代以來湖南省各市州人均gdp的絕對差異和相對差異都在逐年擴大，其中絕對差異隨年份直線上升，且這種差異擴大的趨勢在短期內難以改變；通過計算各市州人均gdp與全省人均gdp的離差和比率、各市州發展速度的差異及產業結構的差異，認為湖南省區域經濟差異的空間特徵是：湘東京廣沿線地區基礎較好，發展較快，湘西地區發展緩慢，地區差異不斷擴大；通過以縣為對象的差異研究發現在湘東湘西差異的大背景上還有核心區與邊緣區的差異，它一方面表現為長株潭內層、圍繞長株潭的中層、更遠的外層的圈層差異特徵，最落後的縣分佈於湘西、湘南、湘This passage, under the direction of the theory of land - using and the strategy of sustainable development, selects 20 small - towns representative of those from 3 economic circles in chongqing and carries out some research on the present situation of land - use, the proper disposition, the quota management and the supply pattern of the lands used for construction, the system of land - use in some small - towns and so on, by means of the synthetically technical line which combines the method of quantitative analysis ( statistics and model calculating ) and the method of qualitative analysis ( on - the - spot investigation, science of land, politics and economics, systematicness, ecology and so on. ) the passage also comes up with the strategy and measure of sustainably utilizing the land sources in small - towns
本文以城市土地利用理論和可持續發展思想為指導，選取重慶市三大經濟圈中有代表性的20個小城鎮作為研究樣區，採用統計分析、模型預測等定量分析方法與文獻綜述、實地調研、土地科學與政治經濟學、系統學、生態學等多學科定性分析方法相結合的綜合技術路線，對重慶市小城鎮土地利用的現狀、優化配置、建設用地指標管理、建設用地供給模式以及小城鎮用地制度等進行研究，提出了可持續利用小城鎮土地資源的政策與措施。分享友人