useful efficiency 中文意思是什麼

useful efficiency 解釋
有效功率
  • useful : adj. 1. 有用的，有益的，有效的，有幫助的。2. 〈俚語〉值得稱贊的，精通…的 （at）。adv. -ly ,-ness n.
  • efficiency : n. 1. 功效。2. 效率；效能；實力，能力。3. 【物理學】性能。
  1. To research in the area of liquid helium cryopump used in nbi system is meaningful for obtaining better beam transportation efficiency. physical parameters and experience are obtained that are very useful in developing cryopumps

    開展中性束注入系統液氦低溫冷凝泵的研究，對獲得優良的束傳輸效率，具有非常重大的意義；並為以後相關應用領域中低溫冷凝泵的設計提供了性能參數和工程經驗。
  2. To research in the area of liquid helium cryopump used in nbi system is meaningful for obtaining better beam transportation efficiency. physical parameters and experience were obtained which is very useful in developing even larger cryopump

    開展中性束注入系統液氦低溫冷凝泵的相關研究，對獲得優良的束傳輸效率，具有積極的意義；並為以後開發更大抽速的低溫泵及相關應用積累了豐富的物理參數和經驗。
  3. Based on the one and a half year " s lucubration, the author gets one new error concealment way with better combination between efficiency and running time in processing the errors in video communication. according to the experiment results and relative data analysis, we can get a certain conclusion, which is that the algorithms are correct and useful

    課題在開放的h . 263測試模型tmn8中實現了該演算法，實現過程包括誤碼的檢測，定位和誤碼部分數據的恢復等工作，並與標準h . 263的結果進行了比較，模擬結果表明，經檢錯和掩蓋之後，解碼圖像質量有了顯著的改善，證明了演算法的正確性和實用性。
  4. The efficiency and reliability of minerogenetic prediction can be improved by combining rs with gis. we processed rs images, extracted the geological information related to mineralizing, such as geology, structures, stratam, rocks, etc, synthetically analysed remote sensing, the geological data and geo - chemistry, under the guidance of the theory and mathematic model, set up gis mineralize model. on this condition, to develop this method and its theory, and to establish a system of perfect prediction, it is not only useful in studied degree area but also favorable for looking for new type and some form large - scale deposits in old studied area, and it has a great theoretical meaning

    遙感與gis相結合用於成礦預測中可大大提高預測工作的效率和可靠性。通過對研究區的遙感圖像處理和地質、構造、地層、巖石、礦化蝕變等有關信息的特徵提取、遙感、地質數據和物化探數據的綜合與復合分析，在一定成礦理論和數學模型指導下，建立gis綜合找礦模型。在此基礎上，發展這一方法及理論並建立完善的預測體系，不僅對研究程度較低的新區礦床預測有用，而且對研究程度較高的老區尋找新類型和點狀大型、超大型礦床都具有重要理論意義和實際意義。
  5. It become practical significance and a vastitude foreground to abstract useful knowledge, construct adaptive web site, improve efficiency of www with web mining intellectively and automatically based on the latest researched results, this paper discuss the content, characteristics and processes of web usage mining

    因此，採用web挖掘智能地、自動地提取出有價值的知識，構建自適應網站，提高www的效率，具有十分重要的現實意義和廣闊的應用前景。基於國內外最新研究成果，論述了web使用挖掘的內容、特點和挖掘過程。
  6. In a summary, this paper systematically describes the optimum assignment of fire power for heavy artillery weapons and gets some useful results which can be used by ground artillery to increase the firing efficiency and fulfill the firing mission excellently

    論文研究成果為炮兵部隊遂行射擊任務時的兵力和火力的運用提供了理論依據，同時，研究成果也為優化使用炮兵武器裝備奠定了基礎。
  7. Biosorption is a process that utilizes inexpensive active / dead biomass to sequester heavy metals and is particularly useful for the removal of contaminants from industrial effluents. compared with conventional methods such as ion exchange and precipitation with lime, the biosorption process offers the advantages of low operating cost, minimization of the volume of chemical and biological sludge to be disposed of, high efficiency in detoxifying very dilute effluents

    生物吸附技術是環境領域近年來迅速發展起來的處理工業污染廢水的新技術，它以各種生物（菌類或藻類）吸附廢水中的重金屬離子，具有吸附容量大，選擇性強，效率高，消耗少，並能有效的處理含低濃度重金屬離子廢水等優點。
  8. As the key block of the wireless communication transmitter in rf, it is very useful in improving the output power and efficiency, lowering the loss of the supply, lowering the size and the weight, lengthening the time of communication. class e power amplifier which is suitable to amplify envelop signal is very important in modern communication system

    功率放大器（ pa ）作為無線通信射頻發射機中不可缺少的關鍵電路，對于提高手機的功率效率、降低電源損耗、減小體積重量、延長通話時間有著舉足輕重的作用，而適用於恆包絡信號放大的e類功率放大器，更是在現代通信系統中佔有十分重要的地位。
  9. Experiments indicate that the inverted index based on schema gets the best trade - off between space cost and query efficiency. this result is useful for the design of future search engine for xml

    實驗結果表明本文提出的兩種倒排索引的空間開銷得到了顯著改善，其中基於模式的倒排索引獲得了最好的存儲空間與查詢效率的權衡。
  10. The heat - exchange apparatus is the window for air - conditioner to exchange energy with outside. we analyze the efficiency of heat - exchange apparatus by the theory of heat - transmit, and compare the advantage and disadvantage of different type evaporator ' s and condenser ' s design by lots testing, and compare the effect of heat - exchange for different type flake, and compare the effect of heat resistance for different stretch of copper tube and flake. then we get many useful results from those different comparing

    蒸發器與冷凝器統稱為換熱器，換熱器是空調器與外界進行能量交換窗口，利用傳熱學原理對換熱器的效率進行分析，通過大量的試驗比較不同的蒸發器，冷凝器設計方案的優劣；比較冷凝器使用不同片型對換熱效果的影響；比較銅管與翅片的不同脹緊對熱阻的影響，通過比較得出很多有用的結論。
  11. So, studying the manufacturing management information system based on internet, which can share and exchange useful information without any space and time restriction, improves the efficiency of management, and transforms and promotes the traditional manufacture, has become a trend

    因此，研究基於internet的企業生產管理信息系統，突破企業在信息溝通和交流上的限制，提高企業的經營管理效率，利用信息技術來改造和提升傳統的製造業，成為管理信息系統的發展趨勢。
  12. The result of the study shows that the electro - hydraulic proportional technology is useful for all - hydraulic operated drilling machine to simplify the operations and composition of system, to improve the level of automatization and efficiency and to reduce the consumption of energy. the result of the study also shows that the system of feeding has the properties as followed : fast respone, stable pressure - adjusted characteristic, distinct effect of energy - saving, some improvement of system efficiency

    研究結果表明：全液壓鉆機中應用電液比例技術，可以簡化系統組成和操作，提高鉆機自動化水平，提高系統效率，降低發熱和溫升；採用恆壓變量泵的給進加壓電液比例控制系統調壓性能穩定、響應快、節能效果明顯。
  13. It is very useful for the financial management to cut down the government expenditure, to improve the working efficiency and the benefit of using funds

    加強國家機關行政財務管理對于節約經費開支、提高辦事效率和資金的使用效益具有重要的意義。
  14. Our results explain the mechanisms of the composition and doping dependent thz radiation efficiency for the different crystals. experimental results in this thesis are useful for growing eo crystals with high performance, and suggest that more parameters are required for better characterization of this kind of crystals as thz wave emitters. the main results and conclusions are listed as follows : 1 ) experimental measurements with low cd composition zn1 - xcdxte < 110 > crystals ( 0 < x < 0. 25 ) as thz emitters indicate the optimum composition of x = 0. 05

    在國際上，我們首次用實驗研究了不同組分、不同摻雜的zn _ （ 1 - x ） cd _ xte < 110 >單晶（ x = 0 0 . 25 ）對thz輻射的吸收情況和它們產生thz輻射的相位匹配情況，並首次從晶體對thz輻射的吸收和晶體的相位匹配角度解釋了這些晶體產生thz輻射效率不同的原因。
  15. The significance of this thesis lies in proposing the suggested administration mode of waterway communications and transport according to china ' s current situation, offering useful references for the reform of administration communications system and the macroscopical decision - making of competent departments for communications in order to solve the existing problems in the administration of waterway communications and transport in china, to improve administrative efficiency, and to promote the development of waterway transportation

    論文的意義在於為解決當前我國水路交通運輸行政管理中存在的問題，提出了符合我國現實情況的水路交通運輸行政管理建議模式，為進行中的交通管理體制改革和國家交通主管部門的宏觀決策提供有益的參考，以提高政府的管理效率，促進水路交通運輸事業的發展。
  16. In non - selfsustained discharge the excitation and ionization processes can be controlled separately, which is useful to optimize the e / p value of the discharge. the ballast resistance can be leaved out and the maximal electro - optical efficiency reaches 19 %

    非自持放電使激光器的激發和電離過程分開，有利於使二者分別處于各自的最佳e p值附近，放電的正阻抗特性使放電電路可以省去限流電阻，極大地提高激光器的實際效率。
  17. It aims to realize the sharing of talents of science and technology resources in guangdong, and to improve the efficiency of talents of science and technology management this system is useful for the government departments to manage and trace the information of talents of science and technology in time, so that to strengthen the combination of production, studying and research

    我們開發的廣東省科技人才庫系統是一個web數據庫系統，其目的是實現廣東省科技人才資源的共享，提高科技人才管理的效率和信息化程度，達到對高層次人才的跟蹤管理，同時便於有關部門動態掌握科技人才發展狀況和加強產、學、研的結合。
  18. We define the recombination time of excess electrons in p field as the minority carrier lifetime. in theory, we developed the equation between excess minority carriers lifetime and the open - circuit voltage decay ; moreover, the effect of capacitance to general open - circuit voltage is also investigated. both different efficiency solar cells are measured by the method and showed the relations between the minority carrier lifetime and the performance of solar cells, which provides great useful guidelines for fabricating high - efficiency silicon solar cell in industry

    根據太陽電池的工作原理，詳細地論述了用脈沖光源照射n / p結太陽電池時光電壓的產生，理論上給出了注入p區的電子復合帶來的開路電壓與少子壽命的關系，也研究了n / p結勢壘電容放電對開路電壓衰減的影響關系，推導了利用開路電壓隨時間衰減的關系來測量少數載流子壽命的理論公式。
  19. Based on the detailed investigate on the work of direction to take up an occupation and the valuable experience of many universities and institutes, we bring forward a suit of evaluation indexes for the work of university graduate " s employment, such as the wish of graduates for employment, the employer " s requirement, the rate of the employment obtained, the rate of supply and requirement, the rate of wishes and requirement, the degree of individual satisfaction, the degree of colony satisfaction and the degree of wishes altered, etc. these indexes can reflect the trend of the graduate " s notion for job choice and the requirement from the society, the state of the graduate " s employment with different major and so on. so these indexes are useful for the direction. using the modern computer and database technologies and obeying the rule of software energy, we have developed the management system for university graduates " employments and this software meets the requirement of scientific and high efficiency management

    本文在對高校畢業生就業工作進行詳細的調研基礎上，匯集了多所大專院校畢業生就業分配工作的寶貴經驗，提出了一套高校畢業生就業工作評估指標，如畢業生擇業願望、用人單位需求、一次就業率、供需比、願需比、個體滿意度、群體滿意度以及擇業願望調整度等多項指標，由這些指標，可以反映出畢業；生就業觀念和社會需求的變化趨勢，及各專業的就業情況、畢業生擇業願望與社會需求的符合度等等，從而為高校畢業生就業工作提供指導，並且利用現代計算機和數據庫技術，嚴格按照軟體工程的方法，經過可行性研究與計劃、需求分析、設計、編程、測試以及運行維護等階段，研製出了一套高校畢業生就業信息管理軟體，很好地實現了高校畢業生就業工作的科學、高效管理。
  20. Abstract : in this paper, we propose an improved lagrangian relaxation algorithm to solve job - shop scheduling problems. besides the addition of augmented objective, we expand the search scope of near - optimal solutions and improve the computational efficiency greatly by restricting the solution scope of sub - problems and modifying the search method of dual problem. at the same time, we develop a genetic algorithm combining with the lr ( lagrangian relaxation ) method. using the numerous useful solutions we get in the lagrangian relaxation as the original genes, we can improve the solution further. test results show that these methods achieve satisfied outcome for job - shop problems. they can also be applyed to other programming problems with constraints

    文摘:針對車間調度問題，提出了一種改進的拉氏鬆弛演算法.在增加輔助目標函數的基礎上，通過對子問題的限制和搜索策略的改變，使拉氏演算法的計算量減少，近優解的搜索能力有很大改善.本文還提出了一種基因優化演算法，充分利用拉氏演算法得到的多個近優解，進一步優化結果.模擬結果表明對車間調度問題得到了較好的結果.本方法也可用於其它有約束的規劃問題
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