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工程力学的一个常见现象是,弹簧的抗压能力要强于同质量同等材料做成的坚固体。原因是当压力袭来之时,前者能够调节自己紧张或放松的状态……
A common phenomenon in engineering mechanics is that the compressive capacity of a spring is stronger than that of a solid body of the same quality. The reason is that when the pressure hit, the former can adjust their nervous or relaxed state ......