optimum trajectory 中文意思是什麼
optimum trajectory
解釋
最佳彈道- optimum : n. （pl. optimums, -ma ） 【主、生】（成長繁殖等的）最適條件，最適度。adj. 最適宜的。 the optimum temperature 最適溫度。
- trajectory : n （拋射體的）軌道，彈道；流軌；【幾】軌線。 a curved [direct fire flat highangle fire low] traje...
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Multi - bore and lateral wells can improve the oil recovery efficiency, increase productivity and reduce cost. the reasonability and perfection of drilling engineering design are the key and precondition to drill lateral wells. the principles &, methods of type selection, optimum design of well trajectory, selection of sidetrack ways, design of drill strings &, drilling fluid and completion design are introduced in this paper
從生產實際工作出發，論述了現行鉆井井史標準在貫徹實施中存在的問題，提出了應增加及改進修訂的一些項目內容，如填寫要求、鉆具、鉆頭、定向井及井控技術等，對井史標準的修訂及鉆井工藝技術信息資料的採集錄入存儲和利用，有一定的參考價值。 -
Due to the fact that joint position errors decrease when the jerk decreases, comparisons with an alternative global optimum target relating to minimum - jerk ( mj ) trajectory are exposed and the favorable joint trajectories are obtained by introducing a factor
考慮到加速度變化率對路徑跟蹤的影響，比較與加速度變化率相關的不同的優化目標函數時的路徑跟蹤性能，提出引入一個時間系數來修正運動總時間，獲得跟蹤性能良好的關節軌跡。 -
And the effect of the work order of the two propellant units to the performance of the trajectory and the matching conditions to obtain the theoretical optimum trajectory is discussed too. according to the ballistic speciality of a hybrid base - bleed - rocket extended - range projectile during base - bleed and rocket work, its physical parameter is non - constant, such as its mass position of mass centre polar and equatorial moment of inertia. after a mulriple ballistic model of constant physical parameter is established, a mulriple ballistic model of continuous and non - continuous physical parameter is educed and the program is compiled, the theoretical tool is constructed to study othe other pivotal technology of a hybrid base - bleed - rocket extended - range projectile
本文根據底排?火箭復合增程彈其底排燃減阻和火箭助推階段的質量、質心位置、轉動慣量等結構特徵參量變化的彈道特徵，在建立底排?火箭復合增程彈結構特徵參量為不變常量的多元彈道計算模型基礎上，導出了結構特徵參量為連續變化量和非連續變化量的底排?火箭復合增程彈多元彈道計算模型，編制了相應的計算機數值分析程序，構建了研究底排?火箭復合增程彈其它關鍵技術的理論工具。
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