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Liquid through the bottom valve 6and the suction tube into the pump.
液体经底阀6和吸入管进入泵内。
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