6152| 9
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離心泵各組成部件名稱? |
5金幣
最佳答案兩邊是機(jī)械密封,雙葉輪里邊的是液體進(jìn)口(導(dǎo)流涵?) 應(yīng)按是一個(gè) Split Case Pump
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