樓主: 澤野xtl
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求助帖:畢設(shè)老師給的題目是把一個50kg重,,秒速300m的東西減速到零 |
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小黑屋|手機版|Archiver|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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