... mud flush test 钻泥浆冲洗试验 mud hopper 泥浆漏斗 mud jack 压浆泵 ...
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mud mixing hopper 泥浆搅拌漏斗
mud collecting hopper 聚渣斗
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Excluded methods: to hopper inside the 15 ~ 30l of water poured into the mud again and again is, reverse to start pumps, forcing the channel to open.
排除方法：往料斗内倒入15 ~ 30l水泥浆，反复正、反向启动泵，迫使通路打开。
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