極大的難題 的英文怎麼說

中文拼音 [jídàdenántí]
極大的難題 英文
a fiendish problem
  • 極 : i 名詞1 （頂點; 盡頭） the utmost point; extreme 2 （地球的南北兩端; 磁體的兩端; 電源或電器上電流...
  • 的 : 4次方是 The fourth power of 2 is direction
  • 難 : 難Ⅰ形容詞1 （做起來費事的） difficult; hard; troublesome 2 （不容易; 不大可能） hardly possible 3...
  • 題 : Ⅰ名詞1. （題目） subject; title; topic; problem 2. （姓氏） a surname Ⅱ動詞（寫上） inscribe; write
  • 難題 : difficult problem; a hard nut to crack; aporia; poser; hot potato; facer; headache; stinker; teas...
  1. The first one : fitting together ultimate values of every dimensions in one dimension - chain one by one, educing many equations by itself, calculating results, and comparing these results of close dimension to find maximal and minimal values. the second one : projecting all dimensions on two preestablished axis, then providing the solutions to analyze whether every projected dimensions is increscent or decreasing, and synthesize the effect of every projected dimensions to close dimension, educing many equations by itself, at last calculating the result of close dimension. the third one : according to monte carlo analysis, getting every dimensions " values from every dimensions " tolerances at random time after time, simulating the actual circumstances of mass production using these dimensions, and calculating reasonable results of close dimension economically

    鑒于這類系統在各大中小型企業的廣泛應用與相對滯后的研究水平，本文提出了三種新的能切實地解決目前尺寸鏈計算機輔助分析解算中存在的各種難題的設計方案，第一種方案將尺寸鏈中各組成環能取的極值組合起來，自動列方程組，求解每個組合情況下的封閉環尺寸，最後比較這些結果，得出封閉環的最大最小值；第二種方案將尺寸鏈各組成環向預先設定好的兩個方向投影，之後再分析各尺寸環投影分量的增減性，並且提供了組成環兩個方向上的投影分量增減性不一的復雜情況下的解決辦法，綜合組成環各投影分量的增減性，然後自動列出方程組，最後根據各組成環的投影分量以及所列的方程組來確定尺寸鏈封閉環的尺寸；第三種方案以蒙特卡洛法為原理，在尺寸鏈各組成環的取值范圍內使用計算機產生大量隨機數，模擬實際大批量生產中的零件尺寸分佈情況，以更經濟更合理的方式分析、計算封閉環尺寸。
  2. The square culture took the civic culture the new resources, have the enormous value to the urban development and the significance, but in city square cultural reconstruction process, because lacked resident ' s seffective participation, the city government one - sided achievements orientation and the square ecology erroneous zone, the culture has savored is not high, the sustainable development realizes and so on the question with difficulty

    摘要廣場文化作為城市文化的新資源，對城市發展有著極大的價值與意義，但在城市廣場文化建設過程中，由於缺乏市民的有效參與、城市政府片面的政績取向和房地產資本自發的市場取向制約了城市廣場文化的發展，出現了諸如廣場生態誤區、文化品味不高、可持續發展難以實現等問題。
  3. Application of caving mining technology with bottom under condition of flat dipping mid - thick body and unstable rock caused the most of trench and bottom drift, located in abutment, to be destroyed and low recovery in south area, xishimen iron mine

    摘要在緩傾斜中厚礦體底板巖性不穩固的條件下，採用有底柱崩落法，由於電耙道大多處于空區邊部應力集中的部位，致使塹溝及底部結構巷道破壞嚴重而使回收率極低，採用無底柱崩落卸壓則可有效解決上述難題。
  4. In addition, cavitation is a difficult problem in hydraulic machinery. on the basis of a great deal of literature review, the author is also involved in the design of cavitation test facility

    另外，汽蝕一直是水力機械的難點問題，在閱讀大量相關資料的基礎上，積極參與設計了泥泵汽蝕試驗裝置。
  5. In reference [ 4 ], anderson extened the result of hayman from the viewpoint of exceptional set, and put forward a question whether the exceptional set can be expanded into innumerable discs. langley and zhan xiao ping have made great efforts to solve the problems of exceptional set of functions such as fk, fkq [ f ] and fkq [ f ] + p [ f ] etc., obtained comparatively complete result, and given positive answers to anderson s questions. but these result arc only concerned with entire functions due to the difficulty caused by poles

    Langley 、詹小平等做了大量工作，解決了形如f ~ k ， f ~ kq [ f ] ，及f ~ kq [ f ] + p [ f ]等函數的例外集問題，得到了比較滿意的結果，肯定地回答了anderson等人提出的問題，但這些工作基本上局限於整函數，主要原因是極點帶來了很大的困難，對于亞純函數的例外集的研究，詹小平取得了新的進展（見文14 ） 。
  6. But how to deal with thousands of megabytes of data efficiently is a great problem for all people

    但是，人們也遇到了極大的難題，那就是面對成百上千兆的數據，人們無從下手。
  7. Apart from the standard of international and last light technique outside, local of business enterprise too at positive develop the new in lieu of dvd product. the new product hdv for big crocodile country of moment, appliance catena of cooperation hard nut to crack for evd for a life time just two months at facing with disc machine producing the business enterprise beautifully secretly supporting again and quietly show upped

    除了國際上的藍光技術標準之外，國內的企業也在積極開發新的替代dvd的產品。面世剛兩個月的evd在面臨與碟機生產企業的合作難題之際，家電連鎖大鱷國美暗中支持的新產品hdv又悄然登場了。
  8. This article discuss the method to measure distortion of truss by means of ccd device. the distortion can be measured with many kind of displacement transducer, but it must be placed on stable base. when the huge truss is moving through some tunnel, it is difficult to find a stable base, especially there is no enough space for someone to operate. it is hardly to measure the distortion by touching. on the contrary, this can be achieved by means of ccd device

    桁架在自重或載荷的作用下產生的撓度可以用多種位移傳感器測得，這些測量方法需要有良好的基礎，在大型桁架梁測量現場，由於桁架的變形，難于找到這種基準，如果加上測量環境惡劣，人無法操作情況，則會給撓度測量帶來極大的困難，而採用光電荷耦合器件，並利用激光進行遠程實時撓度測量，即可以解決這個難題。
  9. The parameters of double - wishbone suspension are very complicated. these all make it difficult to analyze the motion of the double - wishbone suspension. an analyzing and designing method based on multibody system model is put forward in this study

    汽車雙橫臂獨立懸架是一種比較復雜的多環路空間機構，其運動直觀性差，參數確定相當復雜，給運動分析帶來極大的困難，本課題提出了一種基於多體模型的雙橫臂獨立懸架分析和設計方法。
  10. The former has huge challenge for nonholonomic constraints in the course of motion, and the difficulty of the latter is the uncertainties. these problems are all deeply and systemically studied

    前者因為移動機器人系統存在非完整約束，而使其運動控制具有極大的挑戰性；後者則由於存在各種不確定性給所研究的問題帶來許多困難。
  11. This dissertation concentrates on the difficult problems that the pipeline or pipe defects are not estimated or evaluated quantitatively, intelligently by mfl ( magnetic flux leakage ) inspection method. from the practical demand, theoretical analysis and experiments or testing, the mfl inspection technology of pipeline or pipe defects are explained, summarized in detail in the whole paper, at the same time, the relationship between the mfl field distribution, the mfl signal shape and the defect geometry or severity, the analysis of the mfl data and the compensation of influencing the relationship factors, signal feature extraction, intelligent recognition of defect parameters and so on are studied systematically

    論文針對管道（鋼管）缺陷漏磁檢測定量化、智能化的難題，緊密結合檢測現場實際需要，通過理論分析和大量實驗，系統分析總結了管道（鋼管）缺陷漏磁智能檢測技術，並在缺陷漏磁場分佈以及缺陷漏磁信號與缺陷外形參數間的關系、缺陷漏磁信號分析、漏磁信號影響因素補償、缺陷漏磁場波形特徵提取和缺陷外形尺寸定量識別等方面進行了深入研究，主要成果和創新如下：引出磁偶極子模型近似分析常見缺陷漏磁場，針對磁偶極子模型的不足，將有限元方法應用到缺陷漏磁場分析，實現了常見管道樣本缺陷漏磁場的模擬。
  12. The anode material of aluminum electrolysis is present in the odiously working environment of high temperature and strong corrosiveness medium, so it is very difficult for modern material science to select inert anode material

    摘要鋁電解陽極材料處在高溫、強腐蝕性介質的惡劣工作環境中，所以惰性陽極材料的選擇是現代材料科學難度很大的課題之一。
  13. With the rapid development of economic, food and beverage trade presents excellent development trend, however there are still some management problems especially in middle and small restaurant, for example, low content of science and technology, backward of management method

    近年來，隨著改革開放步伐的加快，人民群眾的生活水平得到了極大的提高，再加之國內社會對第三產業特別是餐飲服務業的需求也越來越高。但餐飲行業自身在快速發展的同時，也遇到了一些急待解決的難題。
  14. The problem for advertisers is that the parliamentary process is tortuously slow in italy

    而廣告客戶面臨的難題是，義大利的議會程序極慢。
  15. The approaches of the geology, especially sequence stratigraphy of lake basins are interpreted to be most important and much debated. exemplified by the ordos basin, the sedimentary facies, sequence stratigraphy and hydrocarbon reservoirs in the fuxian prospect area are examined in detail in the present paper on the basis of reservoir sedimentology, continental sequence stratigraphy, reservoir geology and trace element geochemistry

    因此，湖盆的地質研究一直是地學研究的一個重要內容，其中湖盆層序地層學更是一個國際性的研究課題，也是當今地學中爭議極大的、需要深入探討的一個重要理論難點；而鄂爾多斯湖盆富縣探區延長組層序地層與儲層的深入研究已成為該區油氣勘探取得重大突破的一個緊迫而又現實的要求。
  16. Kicking off mr tung ' s election rally, mr fok said that the chief executive had battled incredible odds, irrational attacks and problems left by the colonial government

    在支持董建華連任大會開始時，霍英東表示：行政長官克服極大困難和無理攻擊，及殖民地留下的問題。
  17. The main features of informal communities at junior high school at rural district are : ( 1 ) forming reason, not only space distance, ability attraction, interests, personalities which are found in the early researches, but also economic condition of the families, living environment ( counties and country sides ), original foundation of relationships ; ( 2 ) the qualities students choose when they look for their partners are positive, healthy, and are basically consistent with their parents " expectations ; ( 3 ) contents of activities, not only study, chat, travel and play, interesting actions, but also doing some rural work to help adults ; ( 4 ) nature, most of the communities " behaviors seldom break disciplines and laws and they seldom have leaders who have obvious position and influence ; ( 5 ) we can consider the students informal communities which are based on interests and hobbies as advantageous condition in the management of class, it ' s difficult to manage the students communities which are drafted apart from class

    2 、貧困地區農村初中學生非正式群體的主要特點是： （ 1 ）形成原因上，除以往研究中發現的空間距離、能力吸引、興趣、性格以外，還包括家庭經濟條件、生活環境（鄉鎮和山村） 、原來關系基礎等因素； （ 2 ）學生選擇夥伴時所趨同的品質都是積極上進的、健康的，並基本與家長的期望相一致； （ 3 ）在活動內容方面，除一起學習、閑聊、遊玩、興趣活動以外，還有幫助大人干農活； （ 4 ）大多數學生群體較少有違紀或違法行為，群體中具備明顯地位和影響力的自然頭領較少； （ 5 ）以興趣愛好為基礎結成的學生非正式群體在班級管理中可作為有利條件，與班級關系疏遠的學生非正式群體是班級管理中的難題。
  18. The research on risk management efficiency is at the starting phase. the efficiency of risk management has similarity with management efficiency, meanwhile they have differences, that means the input and output of risk management has great uncertainty and complexity, which makes the quantitative research of risk management efficiency more difficult, and becomes the unsolved academic problem at present, and also the pivot and nodus of this essay

    國外在風險管理效率方面的研究，正處于剛起步的階段，風險管理效率的研究與一般意義上的管理效率研究有其相同之處，但也存在較大差異，即風險管理的投入與產出具有極大的不確定性及復雜性，此特點為風險管理效率的定量研究增加了難度，這是當前學術界尚未解決的問題，也是本文研究的重點及難點。
  19. Applicants are expected to have a strong design interest and a lateral and flexible approach to problems

    應聘者需要對設計有極大的興趣，當遇到技術上的難題時可隨機應變，處事方式靈活。
  20. Something you do effortlessly might pose a great difficulty for a handicapped person

    有些事情對你來說不費吹灰之力，對殘疾人卻可能構成極大的難題。
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