conic section 中文意思是什麼
conic section
解釋
圓錐截面；圓錐[二次]曲線。-
The demonstration of the conic section is an envelope of family of straight lines
圓錐曲線是直線族的包絡的證明 -
On the uniform equation of conic section in descartes coordinate system
直角坐標系下圓錐曲線的統一方程及變化動態初探 -
The characteristic for a class inscribed triangle of conic section and it ' s application
圓錐曲線一類內接三角形的性質及其在作圖中的應用 -
This paper, which aims at the developing strategy of express service, researching and analyzing chinese and foreign express corporations current situation, forecasts the demand of chinese express market in fifteen years with conic section model on the base of statistics
本文立足於快遞業的發展戰略，調查並分析了中外快遞公司在中國發展的現狀，根據實際的快遞業務數據，利用二次曲線預測模型方法對未來15年內的快遞市場需求量進行預測。 -
The basis of dynamics and simulation includes the iterative flyout angle algorithm to the solutions to lambert problem and battin ' s universal conic section state extrapolate method. then spacecraft ' s orbit roots, maneuver impulse and maneuver time are discussed as the following four part : first of all, the chaser ' s one orbit roots is selected as a variable to simulate its influence to the large scale orbital maneuver. the research reveals fact that the orbit roots both of chaser and target should be close to each other to achieve better maneuver and rendezvous " ability, moreover, the best orbit maneuver and rendezvous occurs when both chaser and target ' s initial phase angle are equal
為了研究了交會機動中追蹤器和目標器的軌道根數、機動時限和機動能耗等因素對交會機動的影響，模擬和分析分為以下四個部分:首先，研究了追蹤器軌道單個參數為變量情況下兩航天器大范圍交會機動問題，研究表明，追蹤器的變化參量與目標器相應的參量在接近的情況下可以獲得良好的交會機動特性，而對于兩航天器軌道共面的情況下，初始相位角相等時則獲得最佳的機動效果。
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