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一個50噸的物體,自空中跌落1.5米,你怎么緩沖? |
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點評
這個是汽車的那個嗎?像出車禍的那種?
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Archiver|手機版|小黑屋|機械社區(qū) ( 京ICP備10217105號-1,京ICP證050210號,浙公網(wǎng)安備33038202004372號 )
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