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腾讯网
1 个月
为什么有些人拧不开瓶盖,却能徒手劈开西瓜?
旋紧瓶盖后,螺纹和螺纹之间会产生一定的接触压力 ... 图源:摄图网 为了衡量拧瓶盖的难易程度,业界使用了一个叫做松开扭矩的指标。通俗地说:扭矩等于手指在瓶盖切向上施加的力乘以瓶盖的直径。每种饮料的瓶盖都有自己的松开扭矩,当外界施加的 ...
腾讯网
1 个月
为什么有些人拧不开瓶盖,却能徒手劈开西瓜?
旋紧瓶盖后,螺纹和螺纹之间会产生一定的接触 ... 通俗地说:扭矩等于手指在瓶盖切向上施加的力乘以瓶盖的直径。每种饮料的瓶盖都有自己的 ...
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Reelected as speaker
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