河南安陽混凝土上料機引水洞專用真空泵放置應(yīng)低于整條管道,啟動時先將連接的真空泵的水閥打開,然后開泵;關(guān)泵時先關(guān)水閥,后停泵。 河南安陽混凝土上料機引水洞專用
河南安陽混凝土上料機引水洞專用a.以導(dǎo)出全部漏水為其目的;河南安陽混凝土上料機引水洞專用
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