8381| 35
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力學問題求助 |
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點評
連扭矩和彎矩都分不清,還有臉回復,果真無知到很高境界
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Archiver|手機版|小黑屋|機械社區 ( 京ICP備10217105號-1,京ICP證050210號,浙公網安備33038202004372號 )
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