穩性過小 的英文怎麼說

中文拼音 [wěnxìngguòxiǎo]
穩性過小 英文
tender
  • 穩 : 形容詞1 （穩定; 穩當） steady; stable; firm 2 （穩重） steady; staid; sedate 3 （穩妥） sure; rel...
  • 性 : Ⅰ名詞1 （性格） nature; character; disposition 2 （性能; 性質） property; quality 3 （性別） sex ...
  • 過 : 過Ⅰ動詞[口語] （超越） go beyond the limit; undue; excessiveⅡ名詞（姓氏） a surname
  • 小 : Ⅰ形容詞1 （體積、面積、數量、強度等不大） small; little; petty; minor 2 （年紀小的; 年幼的） youn...
  1. The reproductive characteristics and population structure of artemisia ordosica, hedysantm scoparium, caragana korshinskii and the reproductive characteristics of annual plants eragrostis poaeoides and bassia dasyphylla were observed in shapotou artificial revegetation area. stability of the artificial vegetation was appraised from the views of its persistence and variability under local natural condition. the study showed that : the artificial - natural vegetation built with sandbreaks and plants is stable in shapotou area

    通過對沙坡頭人工固沙植被區主要建植種群檸條（ caraganakorshinskii ） 、花棒（ hedysarumscoparium ）和油蒿（ artemisiaordosica ）的繁殖特性及種群結構的研究，以及自然侵入的一年生草本植物小畫眉草（ eragrostispoaeoides ）和霧冰藜（ bassiadasyphylla ）繁殖特性的研究，探討了在植被的持久性和變異性，分析評價了主要受惡劣環境壓力下的人工固沙區植被的穩定性。
  2. Depend on the comprehensive analysis and study of the structure, principle, and exterior characteristic of the motor, through the methods of system modeling and digital simulation analysis, two kind of control device that work for the low voltage ( lvdc ) and the high voltage ( hvdc ) in avigation are researched respectively. point to the control technique of close - loop speed stabilization at a limited adjustment speed range, we bring out the close - loop speed control method that using the rotor position sensor indirectly measure the speed of the motor

    在全面分析了稀土永磁無刷直流電動機的結構特點、工作原理、運行方式以及外部特性的基礎上，通過系統建模和數字模擬分析，分別針對航空低壓直流（ lvdc ）和高壓直流（ hvdc ）兩種電動機構用永磁無刷電動機，在小范圍轉速連續調節下的閉環穩速控制技術進行了詳細理論研究，提出了利用轉子位置傳感器信號間接測量電機轉速進行電機轉速閉環穩速控制的策略。
  3. It is discovered that existence of small amount of n - butyl alcohol in mesoporous zeolite synthesis system can not only modify ordered degree of formation of mesoporous zeolite, which improves hydrothermal stability of it, but also help to attain much smaller, nearly nanometer, grain of mesoporous zeolite

    研究發現，少量正丁醇的存在能改善介孔分子篩形成過程的有序度，並使其水熱穩定性得到提高，同時合成產物的粒度更小，趨近納米顆粒。
  4. In the study of the lumber carrier, one of the very important problem is the in spot and ultimate station due to flooding which will bring tremendous threat to the ship because of the few holds in order to study the lumber carrier buoyancy, stability and longitudinal strength under the condition of flooding, the paper adopt fundamental ship principle and iterative and accumulative concept on the basis of insumersibility theory to detailedly calculate the flooding speed flooding amount front draft after draft stability and longitudinal strength considering the ship " s sinking and inclination which will change the center of gravity and the loading station both in hold and on deck and the effect of flooding and lumber amount in holdo in the last, the paper introduces an example of the actual ship named " fei yun ling " and makes a contrast between not taking measure and taking measure which draws a reasonable conclusion and comes up to some advice the method avoids the cockamamie calculating while insures enough precision the paper draws a conclusion that not all the lumber carrier will submerge when suffering the damaged flooding if the loading or measure is suitable

    為了研究運木船舶在破艙狀態下的浮性、穩性和強度，本文在抗沉性理論的基礎上，運用船舶基本原理，採用了迭代和累計的思想，將船舶的進水過程劃分為很多次進水的積累，詳細計算了運木船在破艙進水的過程中，考慮到各種破艙參數、船舶本身的下沉、艙室內木材、甲板貨的裝載情況和在進水過程中船舶本身的傾斜對進水重心的影響，以及艙室內的進水量和木材對破口處進水速度的影響，船舶總的進水速度、進水量、首尾吃水、穩性的實時狀態和最終船舶的總縱強度，給出了計算實例，並進行了在採取用泵抽水前後浮態參數的對比，得出了該船舶在艙室內的貨物積載量達到某個數值時可以保證船舶在破艙進水時不會沉沒，或者在當開口小於某數值時，採取適當的措施后，可以使船舶避免沉沒。
  5. By hydraulic modeling, this paper describes studies on the stability of a floating bulkhead operating in standing water and flowing water, and it ' s hydrodynamic stability characteristics that distinguish in standing water from in flowing water ; and direct measurements of the forces acting on the model floating body during floating and sinking is taken. as a result, the rotation stress curves are produced and analyzed ; to provide data for optimum operation schedule analyses of the sluice, the relationship of the impact forces acting on the side wall of the gate and the running speed is studied ; the reasons of unstably uplifting of the bulkhead are discussed and the method to solve the problem is also given in this paper

    本文結合常州新閘防洪控制工程水工模型試驗，系統分析了浮箱門在靜水和動水中的穩定性及其影響因素，指出靜水穩性和動水穩性的不同特點；試驗測定了浮箱門動水運行時的受力情況，給出並分析了定位過程轉動力的變化過程曲線；根據浮箱門啟閉速度與門體和岸墻之間撞擊力大小的關系，選擇合理的動力設備，為設計和工程實踐提供可靠依據；分析浮箱門難以穩定上浮的原因，並給出解決方案。
  6. In the course of stowage of heavy article, officers and engineers concertrat their attention on the calculation of vessel " s parameters and the limitation that be bringed by many factors to loading position, and don " t think much of the affection of awkward lengthy cargo " space size to loading position

    在一般的重大件貨物積載過程中，往往側重於船舶的吃水、吃水差、穩性高度和傾角各參數及各因素對裝貨位置的限制，不太重視重大件貨物的空間形狀大小對裝貨位置的影響。
  7. According to the time variation and feature extraction difficulty of rotating machinery vibration signals, the rule of choosing wavelet basis function and wavelet denoising soft - thresholding value is proposed after making further research on wavelet transform technique, using for denoising rotating machinery vibration signals the conception of " energy " is proposed, based on the theory that signals energy in all frequency can be affected by faults deeply, to construct feature vectors of rotating machinery vibration signals which can give a convenient disposal way to fault feature extraction and fault intellectual diagnosis

    針對旋轉機械振動信號的非平穩性及特徵難以提取的特點，通過對小波變換技術的進一步研究，提出旋轉機械振動信號處理的小波基函數選擇原則及小波包消噪的軟閥值原則。利用小波包變換對旋轉機械振動信號進行消噪處理和特徵提取。並以「能量」為元素，構造旋轉機械振動信號的特徵向量，從而為旋轉機械振動信號的故障特徵提取以及后續的故障智能診斷提供了一種便捷的處理方法。
  8. It is shown by structural seismic response of four wavelets that littlewood - paley wavelet is not suitable for structural seismic response, because structural response is too small, meyer wavelet is a better wavelet for structural seismic response, for it ' s structural response is agreement with the finite element method, and also harmonic wavelet, structural response under earthquake is a little bigger than finite element method, structural response under odd exponent wavelet is also bigger than finite element method, this method is very simple by wavelet transform, wavelet transform method is different from old methods, one is with which not only knows the effects of earthquake wave detail frequency - band on structural response, but also considers earthquake wave ' s non - stationary of frequency and time - domain value, another is the second mode shape and higher mode shape response that do n ' t attenuate so fast

    通過對這四種小波的結構地震反應分析研究說明： littlewood ? paley小波不適合於用來作結構地震反應分析，因為在littlewood ? paley小波下的結構地震反應太小，不符合實際情況；用meyer小波作結構地震反應分析比較合適，和有限元法的結果比較接近；也可以用諧波小波來作結構地震反應分析，只是在諧波小波下的結果略為偏大；單邊指數小波下的結構地震反應分析比有限元法稍大一點，它通過小波變換大大簡化了結構地震反應分析。用小波變換方法來進行結構地震反應分析和以往方法不同的是：它不僅可以知道地震波的具體頻率段對結構反應的影響，而且同時考慮了地震波的幅值非平穩性以及頻率非平穩性；另外與以前方法得到的結果有差異的是，第二振型及以後的高一點的振型的反應沒有以前的方法衰減得快。
  9. This paper consists of two parts : in the first part, we will discuss the prob - lem of the pth - mean, complete consistency for the estimators of a nonparamet - ric and linear model with l ~ p - mixingale errors ; in the second part, we will dis - cuss the problem of the rth - mean 、 complete consistency for the estimators of themodels above with weak stationary linear process errors and the uniformly mean consistency. to the nonparametric model y _ ni = g ( x _ ni ) + _ ni, 1 i n, let g _ n ( x ) = w _ ni ( x, w _ n1, … ? xnn ) y _ ni estimate the unknown function g ( x ). to the linear model y _ i - x _ i1 1 + … ? + x _ iq ? _ q, we use lse _ nj to estimate the unknown parametric _ j

    本篇論文主要是由兩大部分內容構成：一是關于誤差是l ~ p ?混合序列的線性回歸模型參數的最小二乘估計與非參數回歸模型未知函數的權函數估計的p ~ -階平均相合性和完全收斂性問題；另一部分是關于誤差是弱平穩線性過程的線性模型參數的最小二乘估計與非參數回歸模型未知函數的權函數估計的r ?階平均相合性和完全收斂性以及權函數估計的一致平均相合性問題。
  10. Then, through stability calculation and analysis for the result, the location of the oil - tight / water - tight transverse bulkheads in the cargo tank area were partly transferred again and again, so that the intact stability and the damaged stability can comply with the latest criterion of " imo "

    通過穩性分析計算和局部改變分艙，使其完整穩性和破艙穩性滿足「 imo 」的最新要求，同時針對如何減小壓載狀態下的靜水彎矩進行了探討。
  11. This thesis describes the three important methods for designing pid controller : imc - based method, frequency method and direct synthesis method. we respectively design the pid controllers for the first - order plus dead - time processes, second - order plus dead - time processes, non - minimum phase processes, integrating and unstable processes, then, performance assessment and robustness metrics are used to compare the pid controllers of the individual process

    論文著重研究了pid控制器的三種重要設計方法：內模法、頻域法和直接綜合法，並從確定性性能指標和魯棒性性能指標的角度，比較這些設計方法在一階加純滯后、二階加純滯后、非最小相位、積分和不穩定過程pid控制器設計中的應用效果。
  12. Thirdly, do theory analysis and parameters optimization. by modifying the parameters that make effect on the stiffness and the joint damping coefficient, confirm a set of parameters which can reduce the vibration and impulsion, meanwhile enhance the reliability and stability of the system. finally, design the experimental platform, and set up the testing system

    再次，對著陸梯在外拉力作用下進行理論分析和參數調整，通過調整彈簧剛度、關節阻尼系數等參數，分析各主要參數對著陸梯釋放過程的影響，確定合理參數，在保證著陸梯順利釋放的基礎上，減小釋放過程中的沖擊和振動，增加系統的可靠性和平穩性。
  13. The dry / wet changes of surrounding area of bohai sea during past 500 years are divided into 7 stages, based on dry / wet indexes ( d / w ) of this area from 1470 to 1985 then, the changes of dry / wet spatial types ( d / wst ) and its related dry / wet regional different iation ( d / wrd ) features among different stages are analyzed. the results show that there are 4 main kinds of d / wst in this area, whose notability and spatial distribution features in different stages are apparently different, which reflects, very well, the changing process of the d / wrd of this region in past500 years. further analysis also presents that, in warmer period, the d / wst and the d / wrd patterns are relatively unsteady, meanwhile, the dry / wet changing difference among different parts of the region is relatively great, but, in colder period, it is just on the contrary. however, in the most severely cold period of the little ice age, t he area ' s d / wst and the d / wrd pattern sareveryu nsteady, and its d / wrd extenti salsot he high estin the whole past 500 years

    用研究區1470 1985年的旱澇等級資料，劃分了該地區500年來旱澇變化的7個階段，討論了不同階段間旱澇型的變化及其旱澇區域分異意義，結果表明， 500年來研究區有4類主要旱澇型，各型旱澇在不同階段的重要程度及場型特徵均有較大差異，深刻反映了該地區500年來旱澇區域分異特徵的變化，通過對500年來旱澇變化與溫度變化的對比發現，較溫暖期，研究區的旱澇型及旱澇區域分異格局較多變，旱澇變化的區域差異性較大，較寒冷期，旱澇型及區域分異格局較穩定，旱澇變化的區域差異性較小，而在小冰期最寒冷階段，旱澇型及旱澇區域分異格局的變動十分頻繁，旱澇變化的區域差異性亦最大
  14. The main purpose is to discuss the stationarity of two classes of nonstationary processes after wavelet transformations

    摘要主要討論了兩類非平穩過程小波?換后的平穩性。
  15. For the nonstationarity of the signal in field, eigenvector of fault is computed with newly advanced wavelet analysis, as the preprocessing in diagnosis procedure

    考慮到現場中信號的非平穩性，採用新發展的小波分析工具，提取故障的特徵向量，作為診斷過程的預處理。
  16. 2. in chapter 2 and chapter 3, we respectively design pid controller using the three methods for stable processes, integrating and unstable processes. the pid controller performances of the individual process are compared with both deterministic performance and robustness

    針對一階加純滯后、二階加純滯后、非最小相位、積分和不穩定過程，從確定性性能指標和魯棒性性能指標兩方面定量比較了同一種對象採用不同設計方法所得到的pid控制迴路的控制效果。
  17. Among the six models, model a and model b can be used to study the vehicle stability and curve negotiation under different track situations. model c and model d can be used to carry out the stability, dynamic curving behavior and ride comfort of the high - speed passenger car. model e and model f are three - dimension train dynamic models which consist of three cars ( head car, intermediate car and tail car )

    所建立的6種動力學模型中，模型a和模型b可用於研究不同軌道條件下車輛的運動穩定性及動態曲線通過性能；模型c和模型d可以用來研究車輛的運動穩定性、動態曲線通過性能及運行平穩性；模型e和模型f是列車系統動力學分析模型，都是由三節車組成的列車單元，三車列車模型作為一個最小的列車單元，包含了頭車、中間車和尾車，已能夠反映整個列車的動力學特性。
  18. And the controlling method of pi makes the temperature control quick and stable. at the same time, the paper completes the mutual communication between temperature control equipment and computer by way of serial interface and usb interface, so as to realize the remote control of computer to the temperature control equipment. finally, the performance test of the semi - conductor temperature control equipment researched in this paper is carried out, and the results show that the precision of the temperature of the controller of semi - conductor can reach to 0. 2, and the degree of temperature stablization is less than 0. 05

    整個系統採用閉環控制結構，使系統的抗干擾能力大大增強;為半導體製冷器量身定做的驅動電路，可以方便的調節通過tec電流的大小和方向，使tec加熱製冷靈活迅速的特點得到充分發揮;使用比例積分（ pi ）的控制方法使得溫度控制快速穩定;同時，本文還實現了溫控儀與上位機通過串列口和usb口兩種方式的通訊，實現了上位機對溫控儀的遠程控制;最後，對所研製的半導體溫度控制儀進行了性能測試，測試結果表明，半導體溫度控制儀溫控精度達到0 . 2 ，溫度穩定度小於0 . 05 ，滿足了系統設計的要求。
  19. Through the study of the impact of the returning land from farming to forestry to farmers, we believe that after returning the land from farming to forestry, the farmers ' income have increased slowly and the grain output have improved, so there is little possibility for farmers to destroy forest to farm and ecology construction would be carried out continuously

    通過研究退耕還林對退耕農戶、糧食產量的影響，認為退耕還林后，農民經濟收入穩中有升，糧食生產得到了提高，農民毀林復耕的可能性極小，生態建設是可以持續進行下去的。
  20. So it is difficult to forecast the karst collapse ’ s time and place. on the other hand, we can evaluate the possibility of karst collapse by surveying the enigeering geology particularly. in other words, prevention and drawing building ’ s layout decide by the stability of karst collapse

    但是，根據當地的巖溶發育程度，則可以通過詳細的工程地質調查，來評價巖溶塌陷發生的可能性大小，即巖溶塌陷的穩定性，尋找潛伏的巖溶洞穴，作為防治塌陷及制訂工程建設規劃的依據。
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