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The double acting reciprocating mud pump one time every two suction drainage action.
而双作用式泥浆泵每往复一次完成两次吸排水行动。
youdao
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Suction phlegm tube every use 1 time should change don't use again.
抽痰管每用一次应更换勿重覆使用。
youdao
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Suction phlegm tube every use 1 time should change don't use again.
抽痰管每用一次应更换勿重覆使用。
youdao