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The so - called precession is caused by the inequality of the moments of inertia of the earth.
所谓日月岁差,是由于地球转动惯量的不相等造成的.
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A method to determine the moments of inertia based on compound - pendulum theory was described.
基于复摆原理,提出一种改进的测量转动惯量的方法,设计制作了测试样机.
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