【机械工程】排气机（吸气器）

gas range

high pressure gas cylinder【机】;pressure bottle【机】

fault indication cable, filled with gas, oil

liquified gas density meter

pressure-gas filling fire extinguisher with pressure-gas filling

gas ionisation as input quantity

firedamp alarm【矿】;gas alarm【矿】;methanophone【矿】

natural gas odorant