trajectories 中文意思是什麼

trajectories 解釋
軌跡；軌道線
  1. Motivated by this observation, this paper studies the problem of efficiently processing k nn k - ge 1 search on r - tree - like structures storing historical information about moving object trajectories. two algorithms are developed based on best - first traversal paradigm, called bfp k nn and bft k nn, which handle the k nn retrieval with respect to the static query point and the moving query trajectory, respectively. both algorithms minimize the number of node access, that is, they perform a single access only to those qualifying nodes that may contain the final result

    例如，若已知動物的軌跡，則動物學家可能提出如下兩種查詢： i在時間區間ti ， tj內找到離一個給定的靜態點譬如食物源實驗室等最近的k條動物軌跡ii在時間區間ti ， tj內找到離一條預先指定的動物軌跡最近的k條動物軌跡。
  2. The subject of orthogonal trajectories remained dormant.

    正交軌線的問題一直處于沉寂狀態。
  3. Several regression models, with an independent variable of sea surface geostrophic current, were set up to simulate the real trajectories of drifters

    對南海中伴隨渦旋運動的2個浮標模擬試驗顯示，諸多模型中以海表地轉流、風海流及背景流為自變量的回歸模型模擬浮標漂流軌跡效果較好。
  4. Experiments on the two drifters showed that the model, with independent variables of sea surface geostrophic current, ekman drift, and mean circulation, has the best efficiency of simulating real trajectories

    利用該回歸模型，模擬出南海2個漂流浮標軌跡和真實軌跡距離偏差較小且二者運動趨勢基本一致。
  5. The approximate solutions of the mid - course trajectories for the boost - glide vehicles are investigated

    摘要研究了助推滑翔式彈道中段的近似解。
  6. In addition, the trajectories of oil droplets entering the hydrocyclone were computed by using the particle obit model. thereby the separation efficiency of the hydrocyclone can be obtained

    另外，本文用顆粒軌道模型計算了進入水力旋流器的油滴顆粒運動軌跡，在此基礎上，得出了水力旋流器的分離效率曲線。
  7. The trajectories of their, first sequent, then simultaneous, urinations were dissimilar : bloom s longer, less irruent, in the incomplete form of the bifurcated penultimate alphabetical letter who in his ultimate year at high school 1880 had been capable of attaining the point of greatest altitude against the whole concurrent strength of the institution, 210 scholars : stephen s higher, more sibilant, who in the ultimate hours of the previous day had augmented by diuretic consumption an insistent vesical pressure

    他們二人那起初有先有后，繼而同時撤出去的尿的軌道並不相似。布盧姆的較長，滋得沒那麼沖，形狀有點像那分叉的倒數第二個字母185 ，卻又有所不同。敢情，他念高中最後一年一八八0的時候，曾有本事對抗全校二百十名學生擰成的那股力量，尿撒得比誰都高。
  8. Orientation weighting restricts the direction of trajectories by predicted candidate trajectories and shrink ferret window, and reduces the amount of calculation. truncated sequential probability ratio test ( tsprt ) is also a algorithm of tbd, it can improve calculation efficiency by multistage thresholds to truncate tree - structured list of candidate trajectory of low degree of confidence

    截斷序貫似然比方法也是一種tbd檢測的方法，其通過多級門限截斷置信度較低的軌跡樹達到提高效率的目的，在動態規劃中加入該演算法，使之積累的軌跡數減少，降低了計算量和存儲量。
  9. In the space program the theory is used to determine spaceship trajectories.

    在空間計劃中，這個理論用於確定飛船的軌道。
  10. To answer this question, we need to plot trajectories of principal stresses.

    為了回答這個問題，我們尚須畫出主應力跡線圖。
  11. The network of lines now conforms closely with a regular system of stress trajectories.

    這些線所形成的網路與規則的主應力跡線族密切吻合。
  12. The knotted periodic trajectories in three - dimensional space

    空間扭結周期軌道
  13. The technology, which is developed on the basis of perfora ting techniques for oil wells and cement injection techniques, can not shoot thr ough the frozen pipe wall at predetermined ground location using energy - gatheri ng - blasting techniques, but also consolidate shaft wall rock by cement injectio n and filling along the frozen pipe and perforated hole s trajectories, achievi ng leakageproof of shaft walls and reducing vertically - added force

    它利用聚能射孔爆破技術，在預定地層位置將凍結管射穿，同時在地面利用凍結管及射孔彈道對特定地層進行注漿充填加固，既可實現井壁堵漏，又能減少由於地層沉降對井壁的垂直附加力。
  14. A multi - phase homing project was obtained, including three different homing trajectories according to the height of initial point being high, or proper, or short. and selection criterion for trajectories was also discussed

    提出了翼傘系統歸航軌跡的分段設計方案，按高度冗餘、高度適中和欠高度三種情況給出了不同的歸航軌跡分段設計方法，並且探討了對應的判斷準則。
  15. Studying the trajectories in phase space of henon - heiles system

    體系的相空間軌跡研究
  16. According to the principle of a new scanning electron microscope and the mechanism of the interaction between electron beam and solid target, the trajectories of an incident electron in a sample are simulated, a simulation program is compiled using the monte carlo method, and the backscattering coefficients corresponding to different parameters of the sem are obtained

    摘要根據新型分析掃描電子顯微鏡的工作原理及載能電子束和固體相互作用原理，利用蒙特卡羅方法模擬入射電子和靶物質的相互作用過程，編制了蒙特卡羅模擬計算程序，獲得了對應不同電鏡工作參數的入射電子背散射率。
  17. This method can provide optimal trajectories in real time for cockpit display and give pilot a useful reference when occurring oei

    這樣機載計算機只要存儲所得到的預測模型，就可以實時計算出在某初始條件下的最優策略和最優軌跡。
  18. Modeling the trajectories of satellite - tracked drifters with regression models

    利用回歸模型模擬衛星跟蹤海洋漂流浮標軌跡
  19. In addition to pic method, the numerical computation method is used as a compensation for the study of the characteristics of electron beam. the two methods are used separately to attain the trajectory of axially - emitted electron beam in diode region and drift region, and the trajectory of radially - emitted electron beam with axial, azimuthal, as well as compounded axial and azimuthal magnetic field. three two - dimensional codes and two three - dimensional codes have been made out to compute the trajectories

    本文特點之一就是採用粒子模擬和數值計算相結合的方法進行模擬計算，分別得到了軸向發射條件下電子在二極體區域和漂移區的軌跡，徑向發射條件下電子在角向磁場、軸向磁場、角向和軸向復合磁場中電子的運動軌跡，分別編制了三個二維電子軌跡計算程序和兩個三維電子軌跡計算程序，最後將粒子模擬和數值計算得到的結果進行了對比，得到了較為滿意的結果。
  20. The global asymptotical tracking of given trajectories is achieved and the boundedness of all signals of the resulted closed - loop system is also guaranteed

    兩種設計方案都實現了對給定目標軌線的全局漸近跟蹤，保證了閉環系統所有信號全局一致有界。
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