無因次導數 的英文怎麼說

中文拼音 [wúyīncìdǎoshǔ]
無因次導數 英文
non-dimensional derivative
  • 無 : 無Ⅰ動詞（沒有） not have; there is not; be without Ⅱ名詞1 （沒有） nothing; nil 2 （姓氏） a surn...
  • 因 : Ⅰ動詞[書面語] （沿襲） follow; carry on Ⅱ介詞1 [書面語] （憑借; 根據） on the basis of; in accord...
  • 次 : Ⅰ名詞1 （次序; 等第） order; sequence 2 [書面語] （出外遠行時停留的處所） stopping place on a jou...
  • 導 : 動詞1. （引導） lead; guide 2. （傳導） transmit; conduct 3. （開導） instruct; teach; give guidance to
  • 數 : 數副詞（屢次） frequently; repeatedly
  1. The numerical procedure has been derived in dimensionless form.

    數值程序是按無因次形式推導的。
  2. Second chapter analysis the scientific misconduct reason. firstly, it lack science spirit. science spirit is basic moral norm that scientist set up and agreement norm for science study. because of many kinds reasons, the science spirit in the our country ca n ' t develop well, make the growth of science spirit in our country exist serious drawback, cause scholarship atmosphere not well. secondly, the scholarship judge rules have serious drawback. the manage way of quantity not used well for the scholarship management. the quality of the spirit product ca n ' t definition or measure by their quantity. the present scholarship of encourage system exist utility phenomenon, but impatient of scholarship management is the sources that produce large quantity plagiarize. the scholarship periodical uses the manuscript period over long, cause one manuscript give to some periodical. third reason is lacks of supervise, control and make track for the system of punish. the fourth is an administration management to act for the scholarship manages administration right dominate scholarship bushiness, cause official " look for rent " behavior

    由於種種原因，科學共同體的科學精神在我國一直無法得到充分的發展，使得我國學術界的科學精神氣質的發育存在著嚴重的缺陷，由此導致了學風不正。其次是學術評價機制也存在嚴重的缺陷，量化管理方式並不適用於學術管理。學術研究者的精神產品的質量和績效是無法用數量來界定或衡量的，高校的評價機制同樣存在嚴重的缺陷，現在的學術鼓勵制度，存在著明顯的急功近利現象，而急於求成的學術管理正是產生大量學術剽竊、論文抄襲現象的根源之一。
  3. The result of experimentation on coupling effect of water and fertilizers on spring corn in the three gorges reservoir area indicate that water stresslead the effect low of highness and lai, and the most effect is made in shooting stage ; it has a significant positive correlation between the yield of corn and biomass, and hasn ' t none significant positive correlation between the yield of corn and the weight of roots ; the coupling effect of water and n is significant, but the coupling effect of water and k is not significant, the maximum yield of corn condition fitting - water and medium n, corn absorbs n has a threshold value during the growth, and using superfluous n is able to prick up soil drought and crop drought ; water is the leading factor which effects the yield of corn, next is n and k

    摘要三峽庫區春玉米盆栽水肥耦合試驗研究結果表明，水分脅迫導致玉米株高和葉面積指數降低，以拔節期受到影響最大；玉米產量與生物量呈顯著正相關關系，產量與根重無顯著正相關關系；水氮耦合效應顯著，適宜水分和中氮處理下玉米的產量最高，玉米生長發育對氮肥的吸收存在一定的閾值，過多施用氮肥會加劇土壤乾旱和作物乾旱，水和鉀耦合效應對玉米產量影響不顯著；水分是影響玉米產量的主導因素，其次是氮效應和鉀效應。
  4. Secondly, according to the requirement of the parametric sensitivity analysis, the method based on orthogonal experiment is chosen to cope with the difficulty of obtaining the sensitivity analysis through the partial derivative of explicit function. and it also overcomes the traditional single factor cyclical method ' s shortcoming ? impossibility to analysis interactional factors. furthermore, some significative conclusions are acquired from the sensitivity analysis

    其次根據軌跡優化問題靈敏度分析的需要，選取基於正交試驗的靈敏度分析方法，解決了軌跡優化問題沒有顯函數，無法通過求其偏導數獲得靈敏度的難點，同時克服了傳統的單因素輪換法對該類問題進行靈敏度分析帶來的弊端? ?無法對有相互作用的因素進行靈敏度分析，並通過對軌跡優化問題進行靈敏度分析，得出了一些有益的結論。
  5. This is the first time that the author wrote down the technology to be a thesis for his post - graduate degree. the author hopes geotechnical professors and experts to research and develop this support system far because initial surveying dates are too limited and the theory is too simple. that the calculation method must be superficial

    此次是筆者首次對該技術進行系統整理以作為本人的碩士論文，山于原位測一試數據不足又無成熟理論參考，因此計一算方法定顯淺薄，望教授及同行專家指導完善，更希望能與同行們繼續對該技術進行進一步研究。
  6. From theoretical analysis, we know the existing demodulation methods have limitations as following : one is that the subtraction of the two signals frequencies will display as the result of demodulation when we demodulate two time - domain adding signals without modulating information ( fault information ) ; the other one is that aliasing phenomenon will occur as a result of getting absolute value, detection or square in the process of generalized demodulation analysis, such phenomenon will result in some superfluous frequency composition on the frequency spectrum, which will puzzle the detec tion of mechanical vibration. if the sampling frequency is selected from a suitable range, the aliasing phenomenon will be avoided ; the last one is that aliasing frequencies will be produced in zoom demodulation analysis because this algorithm cannot employ digital low - pass filtering to avert the folding frequencies of higher harmonics in the process of zoom sub - sampling

    現有的解調分析方法存在以下三種局限性：將不包括調制信息（故障信息）的兩時域相加信號，也以其頻率之差作為解調信號而解出；廣義檢波濾波解調分析中，由於取絕對值、檢波或平方過程可能產生混頻效應，在解調譜中表現為無法分析的頻率成分，並由此推導出避免這種混頻現象的采樣頻率的選取范圍，從根本上避免此類誤診斷的產生；幾種細化解調分析新演算法中，因為無法在細化分析的選抽時進行數字低通濾波，有可能會出現調制頻率的高次諧波成分發生頻率混疊而反折到低頻部分的現象。
  7. An alternative to traditional pipe detection method is to excite stress waves, which can propagate along the pipe, and to monitor the response of the pipe for changes in the received signal at some remote positioa an ultrasonic inspection technique using guided waves was applied to detect and determine the exact location of flaws in long steel pipes

    而傳統無損超聲檢測技術是單點檢測，因而，在檢測長距離管道時，這種方法遇到很大困難。而利用縱向超聲導波檢測管道缺陷，激勵導波沿管道傳播，通過監測管道回波的變化，達到一次檢測數十米的管道範圍，並且是全范圍檢測。
  8. But the existing data of bird impact are highly disperse, so that they do less help for the design of windshield and also cost more to experimental work

    現有的鳥撞實驗數據分散嚴重，因而對風擋設計的指導作用較低，同時也無形中增加了實驗的次數。
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