重力回水系統 的英文怎麼說
中文拼音 [zhònglìhuíshuǐxìtǒng]
重力回水系統
英文
gravity return system- 重 : 重Ⅰ名詞（重量; 分量） weight Ⅱ動詞（重視） lay [place put] stress on; place value upon; attach im...
- 力 : Ⅰ名1 （力量; 能力） power; strength; ability; capacity 2 [物理學] （改變物體運動狀態的作用） forc...
- 回 : 回構詞成分。
- 水 : 名詞1 （由兩個氫原子和一個氧原子結合而成的液體） water 2 （河流） river 3 （指江、河、湖、海、洋...
- 系 : 系動詞（打結; 扣） tie; fasten; do up; button up
- 統 : Ⅰ名詞1 （事物間連續的關系） interconnected system 2 （衣服等的筒狀部分） any tube shaped part of ...
- 重力 : [力學] gravity; force of gravity; gravity force; power of gravity; pull of gravity; gravitational...
- 系統 : 1. （按一定關系組成的同類事物） system 2. （有條理的;有系統的） systematic
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Firstly, the thesis briefly reviews the history of voltage and reactive power control technology, focusing on the defects of the equipment in use. then, with the theoretical analysis and the discussion on voltage and the characteristic of power system as well as the basic principle of voltage and reactive power control, the thesis makes a research on the character of voltage and reactive power control and interprets the controlling regularity of substation. in addition, with the consideration of the changes of transformer tips and the combined influence of capacity groups and reactive power and voltage, the thesis makes adjustment suggestion to the different operating - zones of voltage and reactive power
本文從降低網損和提高變電站自動化水平著眼，對變電站電壓無功控制應用方面的問題進行了研究，本文首先簡要回顧電壓無功控制的發展概況，著重指出了現有電壓無功控制裝置的缺陷；通過理論分析，在討論電力系統電壓、無功調節特點以及電壓無功總體控制原則的基礎上討論了變電站電壓、無功控制特性以及控制原理，給出了變電站電壓無功的控制規律；考慮了變壓器分接頭的變化及電容器組的投切對無功和電壓的綜合影響，針對電壓、無功的各種運行控制區域給出了相應調節策略。After researching the part thermal equipments and systems include heaters, steam leakage and receiving systems, low pressure drain system etc, and computing the efficiency of the systems, find out the better choice of the imported assemblies than the domestic assemblies in parameter and the disfigurements in design and making. based on the above, point out the measure to progress them. according to the analysis, we can get some measures to increase the economical level of the systems and save more energy
對局部熱力設備及熱力系統進行分析研究，包括:加熱器設備、漏汽及回收系統、低加疏水系統、主、再熱蒸汽系統以及凝汽器等部位；並計算汽輪機本體高、中、低壓缸效率，藉此著重對汽輪機通流部分進行了剖析，找出國外進口機組動、靜葉柵、葉型的選擇比國產機組先進性以及國產機組在通流部分設計和製造中的諸多缺陷，並且指出了改進的方向，為機組提高熱經濟性、節能降耗奠定了理論基礎。This paper take comprehensive development project - " enrich farmers through water conservancy ( eftwc project ) " in pinggu district, beijing as an example or research area, to built up indexes system for evaluating such projects based on the analysis of the project ' s functions ; to evaluate the effects of eftwc project on the development of agricultural economy in research area with statistic analysis method, such as the theory of gray system and regression analysis method. the key points of this paper are focused on as following aspects : ( 1 ) the value of eco - environmental benefits of eftwc project in pinggu district is evaluated based on utility value theory and environmental economic methods such as equivalent substitution approach, opportunity cost approach, and replacement cost ap proach ; ( 2 ) the economic effects on investment are appraised with both static and dynamic cost - benefit analysis methods ; and ( 3 ) the effects of the eftwc project on the economy and society sustainability in research area are evaluated synthetically from three aspects : society development ability, economy development ability and resources and environmental capacity
本文以北京市平谷區水利富民綜合開發工程為例，在分析了水利富民綜合開發工程功能的基礎上，建立了水利富民綜合開發工程效益價值評估的指標體系；用灰色系統理論、回歸分析等統計分析方法進行了水利富民綜合開發工程對平谷區農業經濟發展的影響評價；重點以效用價值論為理論依據，用等效替代法、機會成本法和重置成本法（恢復費用法）等環境經濟學方法，對平谷區水利富民綜合開發工程生態環境效益價值進行了評估；採用靜態和動態費用效益分析法進行了水利富民綜合開發工程投資經濟效果分析；最後從社會發展能力、經濟發展能力和資源環境承載能力3個方面進行了水利富民綜合開發工程對平谷區經濟社會可持續發展能力的綜合影響評價。
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