orbit point 中文意思是什麼

orbit point 解釋
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  • orbit : n 1 【天文學】軌道；【解剖學】眼窩，眶；（鳥或昆蟲的）復眼緣的頰部。2 （人生的）旅程，生活過程；...
  • point : n 1 尖頭，尖端；尖頭器具；〈美國〉筆尖；接種針，雕刻針，編織針；小岬，小地角；【拳擊】下巴。2 【...
  1. So combine the item of “ space targets surveillance photoelectricity telescopes arrays system ”, this thesis does research in developing space targets visualization system. the main achievement in this thesis can be summarized as follows : 1. expatiate e the basic theory of satellite track dynamic, analyse the orbit characteristic of two - body problem and launch window, subastral point calculation, visibility and coverage analysis, two - line element sets

    本文結合「空間目標監視光電望遠鏡陣系統」課題，進行了空間目標可視化系統的設計和研究，主要作了以下幾方面的工作: 1 、闡述了衛星軌道動力學的基本原理，分析了二體軌道特性和發射窗口的基本特性，星下點軌跡計算、可見性和覆蓋分析和兩行根數。
  2. Pseudo orbit tracing property and almost periodic point

    偽軌跟蹤性與幾乎周期點
  3. 3. expatiated on the application theory of basic orbit, including subastral point calculation, visibility analysis, coverage evaluating and spacecraft life - span estimate

    3 、闡述了基本軌道應用分析理論，包括星下點軌跡計算、可見性分析、覆蓋評估和軌道壽命估算。
  4. Within the homoclinic orbit or heteroclinic orbit, the analytical expression of one set of periodical track surrounding the center - type singular point is worked out

    得到了同宿軌道或異宿軌道內的，圍繞中心型奇點的一族周期軌道的解析表達式。
  5. This paper is concerned with, the existence and stability of travelling wave solutions for the viscous balance law which is an extension of viscous conservation law where a reaction term g ( u ) is added. l ) the existence of travelling wave solutions by geometric singular perturbation method, we investigate the existence of travelling waves ( a2 ) connecting a saddle point and a sink point and the existence of viscous shock waves c connecting two adjacent or disadjacent saddle points. by giving a detailed analysis of the fast and slow manifolds and verifying the transversality of the intersection of singular stable and unstable manifolds of the reduced problem along the singular heteroclinic orbit, we obtain the existence of travelling waves ( a2 ) in the case of a convex flow function / and that of viscous shock waves c under the assumption that f " is bounded

    主要結果如下： 1 ）行波的存在性本文利用[ 37 ]中幾何奇異攝動理論，通過仔細分析= 0時的快流、慢流，驗證= 0時慢流方程的穩定與不穩定流形橫截相交於奇異異宿軌道，先在f為凸的條件下嚴格證明了（ ）存在連接不相鄰的鞍點、結點的行波（ a2 ） ；然後在地f有界的條件下得到（ ）存在連接鞍點（包括相鄰和不相鄰）的粘性沖擊波c ，彌補了[ 11 ]缺少嚴格證明的不足，並推廣了[ 11 ]在f為凸的條件下得到的粘性沖擊波的存在性結果。
  6. Every result in the paper is presented through specific analytic expression, including the analytic expression of homoclinic orbit or heteroclinic orbit and its melnikov function, analytical expression of periodical track surrounding the center - type singular point within the homoclinic orbit or heteroclinic orbit and its melinkov function, the critical value when periodical m point appears, the critical value when smale horseshoes chaos appears, etc.

    文中的各個結果均以具體的解析形式給出，其中包括同宿軌道或異宿軌道的解析表達式及其melnikov函數；同（異）宿軌道內圍繞中心型奇點的周期軌道的解析表達式及其melnikov函數；出現周期m點的臨界值；出現smale馬蹄混沌的臨界值等。
  7. Nature of the singular point of plane poincare mapping that is established by equation ( 1 ) is analyzed. relationship between the three parameters and homoclinic orbit and heteroclinic orbit of the hamilton system corresponding to this sort of equation is discussed. the adequate and essential condition of the existing homoclinic orbit or heteroclinic orbit for the hamilton system is presented

    分析了方程（ 1 ）建立的平面poincare映射的奇點性質，討論了此類方程對應的hamilton系統的同宿軌道和異宿軌道與三個參數o 、夕、屍的關系，給出了hamilton系統存在同宿軌道或異宿軌道的充分必要條件。
  8. An ocean wave passing through deep water causes a particle on the surface to move in a roughly circular orbit, drawing the particle first towards the advancing wave, then up into the wave, then forward with it and then ? as the wave leaves the particles behind ? back to its starting point again

    穿過深水的海浪使水面上的一個微粒按照一種近乎圓形的軌道移動，先把微粒拉向前移動的海浪，然後推上波浪，隨著波浪移動，然後? ?當波浪把微粒留在身後時? ?又回到出發點。
  9. Netizen mr liu : in football game, my friend is kicked by player of the other side carelessly, still be in at that time the match, did not send a hospital immediately, the examination is different key point as a result later much place is traumatic, among them 3 point are relatively obvious, the biggest the cut of one place is as long as 2 centimeters, orbit fracture contains a large number of haemorrhage

    網友劉先生：在足球比賽中，我的朋友不慎被對方球員踢傷，當時還在比賽，沒有馬上送醫院，后來檢查結果是左眼多處外傷，其中三處較為明顯，最大一處的傷口長達2厘米，眼眶骨折並帶有大量出血。
  10. At the point of co = g > c, it is the hopf bifurcation that the rotor orbit of shaft centerline is the periodic whirl of small amplitude. the method is suitable for the multi - freedom system

    數值求解系統動力學方程，在_ c處，轉子軸心軌跡為極小幅值的周期渦動，此為hopf分岔，分叉后，系統運動為擬周期運動。
  11. The theories of multi member function ' s extremity value, hooke jeeves mode searching method solving wholly complex problem of extremity value and uniformity design method, one new and efficient method to choose test point, are applied to establish the two - dimension oil well orbit optimized model. the shortest length of oil well orbit curve is regarded as this model ' s object and all kinds of effecting parameters are analyzed

    通過引入多元函數極值理論、求解復雜極值問題的hookejeeves模式搜索法及一種較為新穎和高效的試驗點選擇方法：均勻設計法，建立以最短油井軌跡曲線長為目標的二維油井軌道優化設計模型，並對影響井軌跡曲線的參數進行了較為詳細的分析。
  12. And with the results of calculation obtained by the first - order gradient algorithms which is initial value of the neighboring extremal algorithms we can transform the problem into a face to point one, then a good result is attained by the neighboring extremal algorithms. in the end, the course of orbit transfers is depicted

    利用梯度法對兩點邊值問題進行計算，將面對面的問題轉化為一個點對點問題，將所得結果作為鄰近極值法的初始值並進行精確計算。最後，描繪了最優變軌過程。
  13. When the car moves along the orbit, the axis of the two unparallel shafts point to the center of the circle orbit

    非平行軸使得小車作圓周運動時兩軸的中心線指向圓心。
  14. The idea behind the experiment is simple : put a spinning gyroscope into orbit around the earth, with the spin axis pointed toward some distant star as a fixed reference point

    實驗背後的原理十分簡單：將轉動的回轉儀放在環繞地球的軌道，轉軸指向遠處星體，作為固定基準點。
  15. Kinematic orbit determination of low - earth orbiters based on gps precise point positioning technique

    精密單點定位的低軌衛星幾何法定軌
  16. ( 5 ) using the method apd, it select a new drive signal s = x1 - cx3 to synchronize the response system, the theory analysis and numerical simulation results show that it can synchronize two hyperchaotic systems completely with the drive signal s = x1 - cx3, comparing with the method of selecting signal in literature [ 114 ], with the drive signal s = x1 - cx3, it can shortens the transient period of synchronization ( 6 ) using the outside standard signal to control 4d oscillator hyperchaotic system, basing on the stability theory, constructing the following lyapunov function it gets the controller as following : the theory analysis and numerical simulation result show : using the controller above, it can control the system to reach any desired stable point and period orbit

    （ 5 ）採用apd方法，選取新的驅動信號s x1一ex來同步響應系統，理論分析和數值結果表明：採用本文的驅動信號可以使兩個超混飩系統同步，和文獻1141相比，採用本文的驅動信號可使同步暫態過程更短。歷）利用外部標準參考信號個和o來控制振子超混燉系統，基於穩定性理論，通過構造l ） apunov函數， kgb （ xz4l4 ） 『 n ） l小t4 xzcko k0卜ro 』十個n xsn n一大0 『得到控制器表達式如下： u ； zr zr 。 （ 1 b ） 』 x 。
  17. Case 1 : when there is no relative measurement, each satellite uses its own on - board attitude sensors to determine its attitude, and exchange the information through the communication link between formation satellites, and then the relative attitude is determined through simple mathematical operation. case 2 : based on the range measurements of gps like sensors, using two - point measurement of the relative orbit state to establish relative orbit and attitude kinematics and measuring equations. and state estimation is achieved through the extended kalman filter technology and unscented kalman filter technology, respectively

    方案一，在星間無相對測量時，由衛星自身攜帶的姿態敏感器實現單星高精度姿態確定，利用星間通信鏈路進行信息交互，通過簡單的數學計算獲得星間相對姿態;方案二，利用類gps相對測量，建立了編隊衛星相對軌道運動和相對姿態運動模型及相對距離測量方程，推導了兩點相對軌道運動模型，設計了擴展卡爾曼濾波器及uscented卡爾曼濾波器，對相對位置、速度和姿態進行估計。
  18. Algorithms of on - board gps real - time single point positioning and dynamic orbit determination using positioning solutions are mainly studied

    本文重點研究星載gps單點實時定位和基於單點定位結果的動力學定軌方法。
  19. There would be no way to repair and upgrade this telescope, though ? it would be placed in an inaccessible orbit around the so - called second lagrangian point, where the earth, the sun and the moon orbit one another while remaining in the same position relative to each other

    然而韋博望遠鏡將無法得到維修和更新，因為它將被設置在一個無法達到的軌道（在所謂的第二拉格朗日點附近，在一點上地球、太陽和月亮相互圍繞運轉，但卻保持相對不變的位置） 。
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