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出气孔 chūqìkǒng
el. air outlet
el.mach. vent
hydroel.st. whistler
met. gas port
oil, transp. air vent
tech. air gate; bleeder hole; core vent; vent opening
出气孔: 15 phrases in 4 subjects
Electronics1
Explosives and Explosive Ordnance Disposal1
Metallurgy2
Technology11