3939| 3
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R0=1.293kg/m3 請問大俠們這是什么意思,用在空壓機方面的? |
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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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