6522| 22
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求一種隔熱好的材料,且方便機械加工 |
點評
伏櫪老師所言極是,可憐的是有時工作任務(wù)對工況、邊界條件都糊里糊涂
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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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