如果没有适当的弹簧钢丝，可用橡皮筋代替弹簧制成简易橡皮筋测力计。
If there is no proper available spring wire, rubber band instead of spring made of simple rubber band dynamometer.
目前常规弹性元件有弹簧、橡皮和气垫，被广泛地应用在工业企业中，满足了工业领域很多弹性储能的需求。
Current conventional elastic elements are springs, rubber and air cushion, which are widely used in industrial enterprises meeting a lot of elastic energy storage needs.
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