5031| 12
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長沉孔深度怎么標注 |
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點評
錐形沉孔,、柱形沉孔都可以有專用符號表示,,并說明深度就可以了
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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,,浙公網安備33038202004372號 )
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