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The elastic device can be a spring, an elastic rubber, etc.
弹性装置可为弹簧、弹性橡胶等。
youdao
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The problem is how to make a spring elastic potential energy is not reduced?
问题是怎样才能让弹簧的弹性势能不减小？
youdao
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The problem is how to make a spring elastic potential energy is not reduced?
问题是怎样才能让弹簧的弹性势能不减小？
youdao