質心系 的英文怎麼說

中文拼音 [zhíxīnxì]
質心系 英文
center of mass frame
  • 質 : Ⅰ名詞1 （性質; 本質） nature; character; essence 2 （質量） quality 3 （物質） matter; substance;...
  • 系 : 系動詞（打結; 扣） tie; fasten; do up; button up
  1. Since rhic has run at a center - of - mass energy snn = 130 gev, and star collaboration analysed antiproton to proton ratio in mid - rapidity region using the first batch of data

    去年， rhic上的star實驗組利用質心系能量130agev的an an對撞產生的首批數據，對中心快度區的反質子質子比進行了研究。
  2. Then the dependences of the cross section on the center - of - mass energy of xcj and baryon are given in the work

    離解的截面，給出了截面對x 。和重子的質心系能量的依賴關系。
  3. This paper adopts an adaptive learning algorithm based on hierarchy clustering to update user profile, which continuously abstract the cancroids of one class of optimum information from the feedback flow of system, which effectively shield the learning process from plenty of feedback noises produced by distorted threshold and sparseness of initial information, which also can imitate artificial feedback approximately to perfect the intelligence of adaptive learning mechanism

    摘要本文採用一種基於層次聚類的自適應學習策略，從系統反饋的信息流中，動態提取一類最優信息的質心更新用戶模型，有效屏蔽了閾值失真和初始信息稀疏造成的大量反饋噪聲，並且能夠近似模仿人工反饋，完善自適應學習機制的智能性。
  4. To avoid ambiguity, newton's first and second laws for systems should be restated in terms of the center of mass.

    為了避免意義含糊，牛頓第一定律和第二定律用於系統時，應根據質心的觀點加以重述。
  5. By using the indexes of the landscape pattern : landscape diversity index, landscape dominance index, landscape fragmentation index, distribution centroid and extended dimension, the thesis presents the dynamic change of wetland spatial pattern from 1987 to 2002. the thesis is discussed from the following parts : part 1 : preface, the summary of the wetland study background and the wetland landscape pattern change study in home and overseas

    通過採用景觀多樣性指數、優勢度、景觀破碎化指數、分佈質心和擴展度等景觀空間格局指數，比較系統地分析了近20年豫境沿黃濕地景觀空間格局變化。本文包括以下八個部分：第一部分為引言，簡要回顧了濕地研究背景和國內外濕地景觀格局變化研究的狀況以及本文研究的意義。
  6. By comprehensive considerate the intercoupling relationship between the side - slip angle and the yaw rate, the combine - control strategy ’ s predominance distinctness because it overcome the disadvantages of the large side - slip angle under the - control and can ’ t following the ideal yaw rate under the - control. vehicle possesses optimal control stability with the combine - control obviously

    由於聯合控制策略綜合考慮了質心側偏角和橫擺角速度之間相互耦合的關系，克服了單獨橫擺角速度控制時質心側偏角過大，以及單獨質心側偏角控制時對理想橫擺角速度跟蹤不好的缺點，因而優勢明顯，聯合控制策略下的車輛具有最佳的操縱穩定性。
  7. The relative momentum of two final particles and the cross section are zero at the threshold energy for an endothermic reaction, while the relative momentum of two initial particles is zero and the cross section at the threshold energy for an exothermic reaction is infinite

    在吸熱反應的閾能處，出射粒子的相對動量以及截面均為零。在放熱反應的閾能處，入射粒子的相對動量為零，截面趨于無窮大。由於強子的動量僅提供如此低的質心系能量，強子物質中x 。
  8. The large pressure decline in the pumping centre caused the deeped - seated confined fluids to develop periodic tectonic pumping, hydrofracturing and precipitation healing in the sodium - rich rock series

    泵吸中心巨大的壓力降使深部的承壓流體在富鈉質巖系中產生周期性的構造泵吸?水力壓裂?沉澱愈合作用。
  9. The centroid position of the focal spot directly depending on intensity distribution and phase slope distribution of near field is derived, and its physical meaning is described

    進一步推導了焦斑質心位置對光束近場強度分佈和相位斜率分佈的依賴關系式，並對該式清晰的物理意義進行了闡述。
  10. In the third part of the thesis, the hijing 2. 0 is used to generate monte carlo events for au + au minimum bias collisions at rhic energies - y / sjvn = 130 and 200 gev

    文章第二部分，我們利用hijing2刀alontecarlo事件產生器產生了rhic能區（質心系能量130agev和200agev ）的an十an最小無偏碰撞事件。
  11. The circular jet is consistent with the visible jet which can be observed in experiments. these results are in agreement with the fact that the third jet ( gluon jet ) was historically first discovered in e + e - collisions in the energy region 17 - 30gev

    這些結論與歷史上在質心系能量區域17 - 30gev第一次在實驗中發現第二個噴注（膠子噴注的實驗事實是完全一致的。
  12. The early coaxial progressive depressing makes the forming of tectonic lens in the competent rich - sodic and incompetent rich - mud rocks ; the later nocoaxial progressive shearing makes the tectonic compression fracture into extension fracture in the early tectonic lens, at the same time, the great drop of pressure leads to the hydrofractureing of deep fluid along the fracture in the rich - sodic rocks, and then produces the hydrofracturing breccia

    早期共軸遞進擠壓使能幹性的富鈉質巖系與非能幹性的富泥質巖系發生構造透鏡石香腸化；晚期的非共軸遞進剪切使早期在透鏡體中心形成的構造裂隙由剪性轉化?張性，並?生巨大的壓力降使深部的流體在富鈉質巖系中沿裂隙發生水力壓裂作用，從而形成雙王水力壓裂含角礫巖。
  13. The measuring principle of brake acceleration, brake speed, height of vehicle gravity center, pitching inertia of sprung mass and efficiency of suspension anti - pitching are also theoretically discussed to provide new methods for vehicle test research

    進一步說明了該系統在車輛制動減速度、制動初速度、整車質心高度、簧上質量縱向轉動慣量及懸架抗制動點頭率的測試或計算方法。
  14. Matrices, vector and vector calculus, newtonian mechanics - single particle, oscillations, nonlinear oscillations and chaos, gravitation, some methods in the calculus of variations, hamilton ' s principles lagrangian and hamiltonian dynamics, central - force motion, dynamics of a system of particles, motion in a noninertia reference frame, dynamics of rigid body

    矩陣和向量的計算、單一質點的牛頓力學、線性與非線性的振動運動、重力、微積分上的變分法介紹、哈密頓原理、拉氏及哈氏力學、連心力下的運動、質點系的運動力學、在非慣性座標中的運動、剛體的運動。
  15. Insulated cables and flexible cords for installations. pvc insulated single - core non sheathed cables with rigid stranded aluminium conductor of rated voltages 450 750 v. series of the national type of category 2

    設備用絕緣電纜和軟線.額定電壓為450 750 v的帶剛性絞合鋁導線的聚氯乙烯絕緣單芯無鎧裝電纜.用鋁作硬質心線.國家型2類系列
  16. Additional insight is gained by examining the elastic collision of equally massive particles in the center-of-mass frame of reference.

    對質量相等的兩質點的彈性碰撞更徹底的理解，可通過質心參照系而獲得。
  17. Symmetry of physical measure in center of mass system

    質心系中物理量的對稱性
  18. As the legged system has a similar dynamics to that of three - dimensional inverted pendulum mode, whose supporting point is equivalently located at the zmp, what is more, there is dynamical relationship between the zero moment point ( zmp ) and the center of gravity ( cog ), so this paper proposed the method that controls the cog of the whole humanoid body system in real - time through the 3 - d inverted pendulum based on variable zmp : first, the irregular terrain analyzed and described, the author proposed an usual obstacles - spanning method, based on the position and the shape of obstacles, the author programmed the smooth trajectory of anklebones

    由於機器人的腿系統和三維倒立擺模型有著相似的動力學特徵，模型的支撐點就是機器人的零力矩點zmp ，另外零力矩點zmp和重心cog之間存在著動態關系，本文採用基於可變zmp的三維倒立擺動力學原理來對類人猿機器人進行質心軌跡生成。首先，通過對復雜地況進行分類統一描述，提出了一套通用的越障軌跡規劃方法，結合復雜地況下障礙的位置和形狀，規劃了機器人連續的踝關節軌跡。
  19. Among them, the uncompetent pelitic series are cleaved in the srong - deformation zone with relatively high temperature, high pressure ; with weak hydrofracturing, the competent sodium - rich series dilatacying and forming microfracture ( ie, embryonic fracture ) in the core of the weak - deformation demain, which is a natural lens - like pumping centre with relatively low temperature, low pressure and high permeability

    強變形帶中的非能幹性泥質巖系強烈劈理化，為相對高溫高壓帶；弱變形域內的能幹性鈉質巖系則伴隨弱水力壓裂作用發生擴容，形成雛形斷裂的微裂隙，同時，它是一個相對低溫、低壓、高滲透率的透鏡狀天然泵吸中心。
  20. The central contents in this paper is : first, the reference frame is defined and the movement equation and the transfer function of the body are proposed in portrait plane. so the module of the center of mass stabilization loop is proposed

    本文研究的主要內容是：第一，定義了坐標系，並在導彈的縱向平面內推導了彈體的運動方程和傳遞函數，確定了質心穩定迴路的模型。
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