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本文比较详细地阐明万有引力定律和圆周运动这两条规律及其物理意义,并就如何运用它们解决天体运动作了一些探讨,并加以例题说明,这对教学甚有助益.
In this paper, the laws of gravity and circular motion are expounded in more detail and their physical meanings. Some discussions are made on how to use them to solve celestial movement, and some examples are given to illustrate the teaching.