Starting with Lagrange equations of the first kind, pure differential equations of multibody systems with rheonomic constraints are established.
根据变与
显含时
的等价性,提出了定
与定
系统判据的等同表述。
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NASA's Lucy mission will study the pristine Trojan asteroids, the remnants of our solar system that have been gravitationally trapped around Jupiter's Lagrange Point number four and Lagrange Point number five for over four and a half billion years.
NASA Lucy 任务将研究原始
特洛伊小行星,这是我们太阳系
残余物,它们被引力困在木星
拉格朗
4 号和拉格朗
5 周围超过 45 亿年。