So it's great. Once you have demonstrated, once you have proven that this parallel axis theorem works, then, of course, you can always use it to your advantage.
很了不起啊，一旦你们证出来了，一旦你们证明了,这个平行轴定理可行，当然，你们可以一直,为自己的便利利用它。
Conservation of angular momentum, moment of inertia, parallel axis theorem.
角动量守恒，惯量，平行轴原理。
A new measuring instrument of rotational inertia has been devised by the fixed - axis rotation principle and parallel axis theorem of compound pendulum.
利用复摆定轴转动原理和刚体平行轴定理设计的一种新型转动惯量测定仪。
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