經濟量的維數 的英文怎麼說

中文拼音 [jīngjìliángdewéishǔ]
經濟量的維數 英文
dimension of economic quantities
  • 經 : 經動詞[紡織] （把紡好的紗或線梳整成經紗或經線） warp
  • 濟 : 濟名詞1. （古水名） the ji river2. （姓氏） a surname
  • 量 : 量動1. （度量） measure 2. （估量） estimate; size up
  • 的 : 4次方是 The fourth power of 2 is direction
  • 維 : Ⅰ動詞1 （連接） tie up; hold together; link 2 （保持; 保全） maintain; safeguard; preserve; keep ...
  • 數 : 數副詞（屢次） frequently; repeatedly
  • 經濟 : 1 [經] （社會物質生產和再生產的活動） economy 2 （對國民經濟有利或有害的） economic; of industria...
  1. The order euphausiacea consists of 86 or 87 species distributed over the ocean of the world, plays an important role in marine ecosystem, particularly in southern ocean, and is the key link of marine primarily productivity and higher trophic levels. krill fisheries are relatively recent developments. 47 species belonging to seven genera of two families in krill were recorded in china seas

    磷蝦是一類大型的海洋浮遊動物，數量大，分佈廣，是海洋浮遊動物的重要類群之一，在海洋生態系統中具有重要地位，尤其在南大洋，是維系海洋初級生產者與更高營養階的主要環節之一；同時，磷蝦又是許多經濟魚類的主要餌料，近年來，磷蝦作為新興的漁業資源正引起人們的高度重視。
  2. Based on the establishment of the mathematical model of the water - level controlling system, the boundary control equation of the stable domain of the continuous system and discrete system are found respectively, and the characteristic of stable domain of the two systems is analysed

    其目的是維持前池水位穩定，提高機組單位流量出力，最大限度利用來水，從而提高電站的經濟效益。在建立水位調節模式下調節系統數學模型基礎之上，對連續、離散系統進行了穩定分析。
  3. This rich variety of genes, species, and biological communities gives us food, wood, fibers, energy, raw materials, industrial chemicals, and medicines - all of which pour hundreds of billions of dollors into the world economy each year

    大量基因，種族和生物群體給我們提供了食物，木材，纖維，能量，肉類，物質，還有工業餓，化學的和機械的生產.這些給世界的經濟每年帶來了數億美元的價值
  4. In this paper i calculate the reasonable possession quantity of port handling machineries with chance - constrained linear programming. first in the paper is the background and meaning of this research ; then analysis present situation of port machinery management both in practice and theory ; in chapter 3, i qualitatively discusses characters influencing machinery quantity, which include lifting ton, intact rate and using rate, age of machinery, machinery purchase and working cost and so on. in chapter 4, i take the influencing characters to mathematic model of chance - constrained linear programming, aiming to maintain the need of production and reduce machinery cost

    文章首先介紹了選題的背景、意義以及主要工作；第2章介紹了港口機械管理在港口企業管理中的地位與作用，以及我國港口機械設備管理與配置現狀，並簡要介紹目前港機合理擁有量的理論研究方法；第3章從技術與經濟角度定性分析了各種因素對港機擁有量的影響，其中主要包括機械起運量、完好率與利用率、機械設備役齡、購置與營運成本等；第4章將各種影響因素引入模犁，提出以完成生產任務、機械成本最低為目標，應用隨機線性規劃模型計算港口流動機械合理擁有量的方法；第5章以大連港大港區為例對模型進行應用，選擇四種型號叉車為研究對象，對其歷史經濟與技術數據進行統計分析，其中重點對隨機變量單位臺時維修費用進行了正態分佈擬合。
  5. In this system, mean velocity pipe is applied to transform the air velocity signal into pressure difference signal, and then the pressure difference signal is input into pressure difference transmitter to realize the transform of the pressure difference signal from non - electricity signal to electric current, and through the resistance in the corresponding sampling circuit the electric current is transformed into voltage signal ; the thermocouple is used as the primary element to realize the transform from temperature signal to the voltage signal ; under the control of communication agreement module, diversified voltage signal is transported into computer by way of a / d conversion module, and then the monitoring software compiled beforehand is transferred to deal with all the voltage signals relatively, the result of which is conveyed to relative interface to display

    該裝置具有三個特點：一是採用表面式測溫方法，有效地減少了元件的維護與損耗；二是採用工業控制計算機及信息就地採集、數據總線傳輸的方式，充分利用計算機和數據自動採集方面的技術，實現各種參數的在線測量，監測指標全面，能與dcs系統聯用，具有技術先進性和一定的前瞻性；三是採用顯示器配工業觸摸屏的顯示方式，為現場運行人員提供了簡單、易學、方便的操作模式。本裝置自2001年8月投入運行以來，有效地幫助、指導運行人員進行燃燒調整，對于鍋爐和機組的安全、經濟運行發揮了重要作用。
  6. This paper is based on the cosco vessel investment decision support system project. firstly, according to the shipping enterprise ' s situation and character, a program suitable to the shipping enterprise is given, which is used to help decision - maker analyze the economical effect of the investment and choose correct investment project. secondly, the author extends the use of the evaluation method of single ship investment, simplifys the calculation of revenue and cost, set up the multi - objective synthesis evaluation model of ship investment to evaluate ship investment considering the fleet as a whole, then to make decisions on vessel type jtonnage, number, financing pattern ; finally, the author analyzes the system, and designs the system, mainly including the design of operation database, design of decision support database, the design of models database, system interface, the style of the system, and analyzes the techni cal problems about the system, some functions has been put into use

    以輔助或支持企業的決策者分析投資的經濟效果，選擇投資方向及決策方案，使決策的結果更能滿足航運企業發展的實際需要，作出科學的決策；其次，本文將單船投資決策的技術經濟評價方法進行推廣，在計算npv指標中涉及到的復雜的成本與收入計算問題進行簡化，並利用運籌學的知識，建立船舶投資決策模型，從船隊整體角度對船舶投資進行綜合評價，以達到對船隊中投入船舶種類、船舶噸位、數量與融資方式選擇的多維決策；最後，本文對船舶投資決策支持系統進行了詳細的系統分析，作出整體框架設計，主要包括操作數據庫設計、 dss數據庫設計、模型庫設計和系統介面、系統風格設計，並對系統開發中涉及到的技術問題予以分析，並實現了部分功能。
  7. The function of the software is useful, it has provided many functions such as the calculate of crop water requirement, pipeline layout ( automatic layout and manual operation ) and its optimization, pipe diameter optimization. investment budgetary estimate and economic beneficial result can be result. and can rapid create plan and do plan comparison, the software provides many kinds of result output such as graph. text, table and so on

    該系統可以實行作物需水量計算，系統設計流量推算、管道水力計算、工程投資概算，經濟效益分析等功能，建立了常用的數據庫（管材、管件、水泵和電機等）並對其進行管理和維護，可以實現包括管道布置、管徑優化、管材選擇等多種參數選擇在內的多種方案比較、優選。系統能提供圖形、文本、表格等多種形式的成果輸出，人機交互界面友好，操作方便。
  8. An ideal investment location can be founded in case disposal of the elements properly the paper works over the technique means of economic risks and puts forward that the economic results are impacted upon by a complicated three - dimensional risk of the absence of information ; in addition, it constitutes economic model of foreign investment to large - scale construction through ahp. the thought economic factors are transferred into quantitative index by taking advantage of computer, a figure of decision - making is worked out as well ; the quantitative and statistic analyses of risk elements is carried out by means of mathematics, which provides decision - makers with a theoretic measure

    本文研究了項目經濟風險的技術分析手段；以系統論的觀點提出了項目經濟結果受到復雜的信息匱乏三維風險因素威脅；構建了大型土木工程國際投資項目經濟風險遞階模型，通過計算機求解將思維性的經濟風險因素轉化為量化指標，做出了決策參考圖；提出了大型項目工程地區的經濟因子數學分析措施，為決策提供了投資地投資等級量化指標的依據；提出了大型土木工程國際投資未確知有理數解決方法，為投資的決策提供了效益分析結果。
  9. To maintain so large number of pipeline will coat enormously. as a result, the method to test pipeline in long range economically and effectively is needed

    要維護如此龐大數量服役管道，所要耗費的人力、物力是難以計數的，由此，迫切需要一種高效、經濟可靠的長距離管道檢測技術，本文所要解決的問題即是在這樣的工程背景下提出的。
  10. In this dissertation, it has mainly studied the fractural dimension measure to petroleum economics system, the phase space reconstruction modeling and prediction techniques to economic chaotic time series. it puts forward chaos dynamitic models, which are forecasting model for oil consumption. corresponding countermeasures of the oil supply - security of china are suggested by analyzing the forecasting results and the problems existing in petroleum economic system of china, especially aiming at the balance between oil production and consumption quantity

    本論文主要研究了石油經濟系統復雜性的分數維度量、經濟混沌時間序列的相空間重構技術、建模和預測技術；建立了石油經濟系統的混沌動力學模型：石油消費的預測模型；並將此模型應用於全國的石油經濟系統研究之中，對全國石油消費量做出預測，根據預測結果分析我國石油經濟系統（尤其是石油供需平衡）中存在的問題，並提出對策。
  11. Based on the consideration of political affairs, economic factors and real situation, it will be more practical and be the better strategies to keep the foreign acquisition channel, and to invest in critical military r & d which is focused on developing core technology and strategic weapon systems

    由政治、經濟因素和現實層面考量，維持現行對外采購的途徑並投注部分關鍵軍事科技研發，並將有限資源集成集中於少數高科技武器研發，才是可行與較佳之策略。
  12. Secondly, this paper describes regional economic disparities in jiangsu by means of date and forms, and then uses the theil index and adding power variance coefficient to analyze the regional economy discrepancies among the different areas of jiangsu province with the views of dynamic state. based on these descriptions, detailed causes for the gaps among northern, southern, and middle parts have been analyzed

    其次，本文以大量的數據闡述了江蘇區域經濟發展差異的特徵，並利用泰爾系數、加權變異系數等指標從動態的角度分析了江蘇省不同區域間的經濟差異，進而分析了造成江蘇南北地區經濟發展差距的原因，包括:區位和歷史因素、思維觀念因素、政策因素等等。
  13. Through the analysis, the paper reaches the following basic conclusions : the quantity of chaoyang district ' s transient population will increase continuously, residential period will prolong gradually and renting house will still be the major residential way of transient population ; transient population play a positive role in the district ' s socioeconomic development, but on the other side they make city infrastructures more difficult to bear the existent heavy burden, difficulty in city management is increased ; transient labor force mainly undertake the supplementary role of the district labor force, but along with the open of the labor force market step by step and the further improving of the quality of transient labor force, the competition between transient labor force and local labor force tends to be intense ; the current management policy of transient population in beijing exists some problems, which stresses management and makes light of service, stresses duties and makes light of rights and interests, stresses planning and makes light of market, stresses outside and makes light of inside, but the policy is tending to the developing direction that is helpful for transient population to flow

    最後總結了本研究的基本結論，並從外來人口管理體制及制度創新、管理措施的改進和維護外來人口權益，健全社會保險體系三方面提出了改革建議。文章通過分析得出以下基本結論：朝陽區外來人口的數量還會繼續增長，居住時間逐漸延長，租住房屋仍然是外來人口最主要的居住方式；外來人口在為本區社會經濟發展起到積極作用的同時，也使城市基礎設施不堪重負，城市管理難度加大；外來勞動力主要承擔著本區勞動力的補充角色，但隨著勞動力市場的逐步開放和外來人口素質的進一步提高，外來勞動力與本地勞動力的競爭趨于激烈；北京市現行的外來人口管理政策存在著重管理而輕服務、重義務而輕權益、重計劃而輕市場、重外部而輕內部的問題，但正趨于有利於外來人口流動的方向發展。
  14. It shows that technical barriers exert an influence on imports by virtue of quantity and price controlling mechanisms. as a special means to set up and maintain market economy, the technical barriers is essential and plays a positive role in trade. however, being a trade protection means, it has negative impacts on trade

    本文認為，技術壁壘主要是通過數量和價格雙重控制機制對進口品產生影響的，其技術壁壘性質的主要方面在於：它是建立和維持市場經濟的技術手段，是正當的和必要的，具有促進貿易的積極作用：在次要方面，它是一種貿易保護的手段，具有阻礙貿易的消極作用。
  15. The study shows that this control approach can overcome those shortages of the methods which are adopted to control voltage and reactive power in substation nowadays, it can hold the voltage level in the regular bound and maintain the balance of reactive power in substation to the greatest extent, and it have the ability to seek the best solution. adopting this methods, the switching times of loaded taps and capacitors can be decreased efficiently and advance the running life - span of the transformer and capacitors and improve the economy benefits. this control approach is a advanced way ii and it is worth to study more and utilize

    利用模糊神經網路對較好地實現對變電站的電壓、無功自動控制，能克服了目前在變電站電壓無功控制中普遍運用的分區方法存在的不足之處，不但可保持變電站電壓在合格的范圍內，盡量維持無功功率平衡，而且具有較好的尋優能力，有效減少變壓器有載調壓開關的切換次數和電容器組的投切次數，提高了變壓器和電容器的運行壽命，提高了經濟效益，是一種值得進一步探索和運用的較為先進的方法。
  16. Chapter 2 mainly explained why reduced the national economic accounting. proceed with public goods characteristic of the national economic accounting at first, used supply - demand theory, external economic theory to expound that national economic accounting reduction can yet be regarded as one effective way for the public to use it. meanwhile, each social economic body playback with the development of

    第四章主要結合統計學中的非參數估計方法、主成分分析方法、因子分析方法，以及粗糙集理論等進行實證檢驗，實現在保持信息量一定的條件下宏觀經濟核算的簡約化，該部分主要從降維方法入手來實現簡約化。
  17. Knowledge economy ? ? a new type economy taken digital it as its core ， is changing people " s value ， ways of thinking and living at a unprecedented speed

    知識經濟? ?以數字化信息技術為先導與核心的新型經濟，正以前所未有速度和能量沖擊著人們的價值觀、思維習慣，改變著人們的生產和生活方式。
  18. Therefore, based on the resistance formulae which is obtained at the beginning of this paper, the mathematic model which sets the economic value as the objective function can be established, and then uses optimization method to get the best structure of the filter when its first invest, maintenance together with operating costs are most economical. and the different results gaining from resistance and economic analysis are compared at the end

    因此本文最後著重在經實驗最終確立的阻力公式基礎上，以多管式高效過濾器的經濟性指標為目標函數建立數學模型，採用有約束單目標多變量的最優化方法，計算得出了該種過濾器初投資和運行維護的費用總經濟性最優時的結構參數，並與僅從阻力方面考慮所得到的結果進行了分析比較。
  19. The desired type of heat exchanger is determined by considering economic factors such as the total costs, comprised of the capital and operating costs. the cost - effectiveness of investments of each system is discussed, with parameters, such as the payback period, net present value and internal rate of return

    分別計算了上述三種系統的cop 、逐月製冷制熱量，並分析了初投資、運行和維護費用、投資回收期、凈價值以及償還利率等經濟學參數對不同系統的影響。
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