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機械設計手冊中一個例題還沒看完已經發現三處計算錯誤 |
點評
還是用公式吧!
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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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