A cyclone flow generates in the blower duct (20) by the first airinflow hole (31) and the suction force of the blower box.
利用该第一空气流入孔(31)和上述吸气箱的吸引力，在吸气管道(20)内产生旋流。
2
The utility model comprises an air drum, a setting scale for airinflow, a positive negative pressure gauge, a respiration valve and a face mask;
本实用新型有一个气鼓，一个进气量设定标尺，一个正负压力表，一个呼吸活瓣，一个面罩；
3
This article discusses the problem of regulating oil inflow by feeding back the revolutions of the diesel engine and of controlling airinflow with loading signals.