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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和存储能量。
youdao
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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和存储能量。
youdao