... 压缩弹簧压力:compressed spring pressure 压缩弹簧力:compressed spring force 压缩弹簧长:compressed spring length ...
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If you connect the body to a spring, which is neither compressed nor extended, there's no force acting on it.
如果将一个弹簧连在这个物体上,弹簧既没有被压缩也没有被拉伸,也不会有力作用在它上面
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