A concept of natural formation and a general RT design method are proposed based on the relative Orbital Element method and the relative motion equation in this paper. An example is given.
基于相对轨道根数法，根据卫星相对运动方程，提出了“自然队形”的概念及队形设计的一般方法，并给出了具体的例子。
Abstract Hybrid orbital theory is an important content of inorganic chemistry and structural chemistry in college text book, and it is the basis for further study of element compounds.
摘要杂化轨道理论是大学无机化学、结构化学课程的重要内容，是后续元素化合物学习的基础。
The SGP4 orbital forecast model is given. And the initial selection of two-line element is analyzed at the same time.
给出了SGP4解析轨道模型的具体形式，分析了双行元初值的选取方法。
The SGP4 orbital forecast model is given. And the initial selection of two-line element is analyzed at the same time.
给出了SGP4解析轨道模型的具体形式，分析了双行元初值的选取方法。
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