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機械設(shè)計的根本立腳點是固定力學(xué)/流體力學(xué)/電磁 么? |
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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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