Hence, the loss of gravitational potential energy of the block equals the gain of elastic potential energy of the spring.

因此，该物块的重力势能的减少，等于该弹簧的弹性势能的增加。

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According to Hertz contact theory, this paper discussed the elastic deformation in the ball screw systems and elastic potential energy caused by it.

根据赫兹接触理论分析了丝杠副滚珠接触的弹性变形量以及由弹性变形所造成的弹性势能。

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The results showed that the difference existed between male and female in elastic potential energy utilization ratio(higher for male)which positively correlated to the skill degree and body mass.

结果表明：弹性势能利用率存在性别差异，男性受试者弹性势能利用率高于女性，并与运动员等级、体重保持一定正相关；

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