... nebulosity 星云状物质 nebulous ring 星云环 negative leap second 负闰秒 ...
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According to the law of conservation of angular momentum, it is proved quantitatively, that planets and satellites are formed through the nebulous ring in this paper.
根据角动量守恒定律，笔者通过计算，定量的论证了行量、卫星是经过星云环形成的。
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