• Extension springs are springs which absorb and store energy by offering resistance to a pulling force.

    拉伸弹簧通过抵抗张力吸收存储能量

    youdao

  • Extension springs are springs which absorb and store energy by offering resistance to a pulling force.

    拉伸弹簧通过抵抗张力吸收存储能量

    youdao

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