强制通风压力通风 forced draught

总通风压力 [矿业] total ventilation pressure

自然通风压力 [矿业] natural ventilation pressure

通风压力计 draft gauge

倾斜通风压力计 inclined draft gage

通风压力损失 ventilation pressure loss

压力通风 [建] forced draft ; pressure ventilation ; [建] [矿业] forced ventilation ; plenum

曲轴箱通风压力调节器 crankcase ventilation pressure regulater

压力通风口 forced draft front