極對稱 的英文怎麼說
中文拼音 [jíduìchèn]
極對稱
英文
polar symmetry-
Three aspects have been emphasized at the beginning of this century. firstly, multipolarized relationship has been formed among different countries, featuring as anisomerous and multi - directionally motivated
世紀之初的世界，強調了三個方面，首先國家間關系初步形成了多極化的結構性特徵，並表現為非對稱性和多向互動的運動規律。The lipase b from candida antarctica ( cal - b ) displays high enantioselectivity on a broad range of substrates, making it an accepted biocatalyst for asymmetric organic chemistry
摘要從南極假絲酵母中提取的脂肪酶b ，具有較高的對應異構體選擇性，廣泛應用在培養基中，作為不對稱有機化學的生物催化劑。Centaurus ships are relatively geometric and smooth, with very few hard edges and little details to break the even surface of the hull. they are almost always symmetric
人馬座艦船的設計相對較整齊和平滑，極少有尖銳邊緣和小零碎突出船殼的平坦表面從而破壞其光滑性。它們幾乎總是對稱的。At the same time, differen t arrays of electrodes have been studied. flow visualization has shown that the plasma between symmetric streamwise electrode strips ca n ' t induce flow velocity at the same phrase driving but can at multi - phrase driving, and asymmetric streamwise eledtrode strips can induce flow velocity both at the same phrase and at multi - phrase driving in still air. in principle, the experimental results correspond to that of the cooperant research between university of tennessee and nasa langley research center
流動顯示實驗表明，在一個大氣壓下，對于電極對稱分佈的情況，在同相位的射頻激勵下，靜止的空氣中沒有明顯的現象，而在多相位射頻激勵下，靜止空氣中的二維平板上可以產生推力，誘導了流場；對于電極的非對稱分佈的情況，在同相位或多相位的射頻激勵下，都能在二維平板上產生推力，並誘導流場。Diatomic molecular symmetry and dissociation limit
雙原子分子的對稱性與離解極限At first, analysis of extreme temperature ' s spatial distribution of variety trend shows that the minimum temperature in the north are going up while the maximal temperature in east china declining widely, which is a numerical characteristics of prevailing warmer - winter in recent years. so the change of minimum and maximal temperature are dissymmetrical
首先從總體上，分析極端最高和極端最低溫度變化趨勢的空間分佈：北方地區極端最低溫度普遍上升，且幅度較大，是近年來暖冬盛行的一個數值化特徵；極端最高溫度在東部普遍下降，最低最高溫度變化具有不對稱性。The major work is as follows : solution of two dimensional radiation or diffraction fluid field. this thesis extends multipole expansion method to adapt to disturbed fluid fields of 2d floating bodies with asymmetric forms, which is applied with symmetric forms originally. and given the solution of potential velocity and hydrodynamic pressure of radiation and diffraction fluid fields, which is incited by a 2d arbitrary form, actual application field of the multipole expansion method has been enlarged
關於二維擾動流場的求解：將通常僅適宜求解具有對稱形狀二維物體擾動流場的多極展開法（保角變換方法）擴展至非對稱形狀二維物體，給出了任意形狀二維物體的輻射和繞射流場的速度勢及水動壓力的頻域解，進一步擴大了多極展開法的實際應用范圍。Institutional investor is a market part who is developping and extending, with the expanding of it ' s scale, it wil become from shareholder negativism to institutional shareholder activism, however, between the institutional investors, another problem exists, that is, who is responsible for supervision, a cock game model which describes the supervision of institutional investors is used in this chapter to inspect the institutional investors " behaviour mode in the situation of supervising cost and return is not symmetric
機構投資者是一個正在發展和壯大的主體，隨著其規模的擴大，會從早先的股東消極主義發展到股東積極主義，但是，機構投資者之間也存在誰去監督的問題，為此，本章採用了一個機構投資者監督侵權行為的斗雞博弈模型，來考察監督的成本和收益的不對稱情況下的機構投資者行為模式。Hexapole rotational state - selection and orientation of b - type prolate limit asymmetric top molecules
型長不對稱陀螺分子在六極靜電場中的轉動態選擇和取向作用The spores are monolete, bilaterally symmetry, elliptic in polar view, and semiorbicular or reniform in equatorial view
孢子兩側對稱，極面觀為橢圓形，赤道面觀為半圓形或腎形。Determining the extreme values and extremal functions of the analytic functions on d = { z $ c : z < 1 } is very important in the principles of univalent functions. baernstein [ 2 ] gave the conclusion by using koebe function as the extremal function, glenn schober [ 6 ] studied the classes such as s, p, k, s * of h ( d ) and represented these functions with integral formulations. wang jian [ 3 ] and others investigated the integral mean values
Baernstein首先在單位圓上討論給出了以koebe函數作為極值函數的結論， glennschober對h （ d ）中一些函數子類如s 、 p 、 k 、 s ~ *等作了研究，將這些子類上的函數用積分表達出來，王鍵結合baernstein ~ *函數的定義及glennschober的結論，定義了對稱集的概念並得出了一些函數類在其上的積分平均。Presenting a new concept of authentication chain. 2. introducing a asymmetry key into authentication algorithm, especailly in the loss compression field algorithm, to enhance more security
提出將用非對稱密鑰演算法應用於認證演算法特別是有損壓縮域的認證演算法之中，因此極大提高了所設計演算法的安全性。Applying those engineering techniques, at present, the following results are obtained : the ground temperatures on the top and at the bottom of an embankment made of crushed rock are all lower than those of common embankment, so the crushed rock embankment is of great advantage of decreasing embankment temperature, and becomes an effective and initiative engineering measure to protect permafrost ; the crushed rock embankment can actively adjust the temperature difference between south slop and north slop, and mitigate the asymmetry of ground temperature ; the deformation of the crushed rock embankment is less than that of common embankment
通過以上的施工技術，取得了相應的階段性成果：片石路基片石層頂面、底面與路基基底位置處地溫分別低於普通路基相同位置處地溫，片石路基有利於降低路基地溫，是一種有效的主動保護多年凍土工程措施；片石路基在調節路基陰陽坡地溫起到了積極的作用，減輕了路基地溫不對稱性的發生；對比片石路基和普通路基的路基變形量，片石路基的變形量相對較小。Adsl, symmetrical dsl ( sdsl ), high - bit - rate dsl ( hdsl ), very high dsl ( vdsl ), and rate adaptive dsl ( radsl ) use intelligent devices similar to network cards at each end of a single twisted - pair copper wire circuit to deliver very high speeds over copper wire for distances ranging from hundreds of feet to 18, 000 feet
Adsl （不對稱數字用戶線） 、 sdsl （對稱數字用戶線） 、 hdsl （高位速率數字用戶線） 、 vdsl （極高速數字用戶線）和radsl （速率自適應數字用戶線）都使用了與網卡類似的智能裝置，它們裝在單根雙絞銅線的兩端，以在幾百到18000英尺的距離范圍內在銅線上提供極高的傳輸速度。Linear induction motor is an important kind of machines which have some merits such as simple structure, low cost, durability, convenience for maintenance etc. the subject of this thesis is to study a big circular ring linear induction motor, and the major works in this thesis are summarized as follows : ( 1 ) considering the effects of the finite length of primary core, one - dimension analytical solution for the air gap field is cited in this paper. based on it, the single layer winding magnetic field is studied. considering whole - pitched and short - pitched winding configuration with odd poles and half - fulled slots in both ends, the double - layer winding magnetic field is analyzed, respectively
本文對大圓環直線感應電機進行了深入細致研究，內容包括： （ 1 ）本文採用有限長行波面電流作用於有限長鐵芯上的模型，引用了氣隙磁場一維解，研究了單層繞組磁場，奇數極半填槽雙層繞組在採用整距和短距時磁場的分析、比較，簡單介紹了二維解； （ 2 ）用有限元軟體ansoft對大圓環直線感應電機空載氣隙磁場進行了靜態分析，並分析了結果； （ 3 ）用軟體進行了額定電壓下的瞬態分析，得到了轉矩，位移，轉速隨時間變化曲線圖，利用單極性霍爾元件測定轉速並與軟體計算結果進行了比較，採用等效電路法計算了堵轉時的最大電磁力並做實驗進行了驗證，由實驗測得了三相電流波形，並與計算結果進行了比較，對其不對稱性進行了定性分析。Polyparaphenylenevinylene ( ppv ) has been paid attention to because of good photoelectric property and peculiar molecule framework ; fullenene have three - dimensional conjugated structure and diminutive electron binding energy, and its peculiar structure and property has interested photoelectric scientist. as an electronic acceptor, c60 can enhance the efficiency of organic photoelectric cells compounded with ppv. but the little solubility of c60 in common organic solvent limited its application, and processing measure need more researchment
聚對苯乙撐（ ppv ）具有優良的光電性能和特有的分子構架而倍受關注， c _ （ 60 ）具有三維共軛結構完美的對稱性和小的電子結合能，以其獨特的結構和性能引起了光電科學工作者的極大興趣，將c _ （ 60 ）作為電子受體與共軛聚合物ppv復合可以使有機光伏電池的效率提高。The symmetric values about the imaginary axis of zero - poles which the unstable process lies in the open and closed right - half plane are defined as their mirror - injection
非穩定過程在開右半平面的零極點關于虛軸的對稱值稱為該零極點的鏡像映射。Hence, under the circumstance of asymmetry of information, we must found the choice, incentive and control mechanism to manager so as to choose appropriate manager and mobilize his / her activity, reduce the proxy cost that brought about by choice and incentive mechanism and raise the performance of agency and solve the agency problem perfectly.
為此，必須在信息不對稱的情況下，建立對經營者的選擇、激勵和監督機制，以選擇合適的經營者並調動其積極性，同時，努力降低因上述機制帶來的代理成本，提高代理績效，實現所有者財富最大化和經營者效用最大化，達到代理問題的圓滿解決。Fitts " law was extended to two - dimensional polar coordinate system, and based on this, a method on human movement quality evaluation was proposed. indices of gait symmetry, indices of difficulty and indices of performance for human upper limbs were defined and combined with other indices to form a set of systematic indices of movement quality evaluation
將fitts定律推廣到二維極坐標下，並以此為基礎建立了矢狀面內的人體運動質量評定方法，定義了上肢運動的難度指標、執行度指標和下肢運動的對稱性指標，提出了一套能反映運動質量各方面情況且具有普遍意義的運動質量評價指標。Magnetic head is designed by six magnetic poles in symmetrical distribution, the design of excitation loop and excitation angle makes magnetic field act on welding arc region which could control welding arc effectively. the insulation, cooling and hermetization of magnetic head avoid the influence on magnetic field of outside ; miniaturization design of magnetic head could achieve different welding process
磁頭裝置採用六磁極對稱勵磁方式設計，勵磁線圈和勵磁角度的設計使產生的磁場恰好作用於焊接電弧區域以實現對電弧的有效控制;磁頭的絕緣，冷卻，密封設計避免了焊接過程中外界因素對磁場的干擾;磁頭整體的小型化使該裝置可以實現多種形式的焊接工藝。分享友人