n.喘气者；廉价香烟
Gas Drainage Technology with Upward Hole Installed Gasper Casing Pipe in Dynamic Pressure District of Sublevel Caving Faces 放顶煤工作面仰斜钻孔安设透气套管抽放动压区瓦斯
gasper air ventilation 乘客个人通风装置
