2699| 8
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大佬們在設(shè)計中該怎么配管呢是算截面積嗎直徑8的氣管最多可以配幾根直徑6的管呢 |
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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(wǎng)安備33038202004372號 )
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