3778| 7
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請問同一流量條件下,選用不同內徑的管子有什么區別? |
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點評
油速很高哦,還能不發熱。
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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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