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通气孔 tōngqìkǒng
gen.	bum-out pipe
agric.	ventilating pit (porus ventilasans)
archit.	burnout pipe
auto.	air extractor holevent; aspirator; breather port; passage
avia.	vent port; ventilation hole; drain hole
dril.	air breather; gas vent
ecol.	draft hole; ventilating hole
eng.geol.	pickup hole
hydroel.st.	air drain; breather; whistler; air vent; air hole; vent hole; ventilator; spiracle; air-breather
life.sc.	ventilating pit
met.	airway; snore; vent-hole
mount.	vent
skydive.	breathing-hole
space	bleed hole; breather hole
tech.	air funnel; bleeder hole; breather (hole); breathing hole; burn-out pipe; gas-vent; snore-hole; ventilating opening; ventilation vent; vent opening
wind.	access of air; pressure hole; venthole
通气孔通风孔 tōngqìkǒng
bridg.constr.	vent; breather; vent-hole; ventilating hole; airvent; aspirail; air opening
通气孔〔管，筒〕 tōngqìkǒng
gen.	breather
通气孔筒 tōngqìkǒng
archit.	breather
测量用通气孔 tōngqìkǒng
astronaut.	pickup hole
通铸造气孔
auto.	blow hole
通气〔风〕孔
gen.	airway
通气〔呼吸，透气〕孔
gen.	breathing-hole
通〔排〕气孔〔口〕
gen.	venthole
牙掌通气孔 tōngqìkǒng
mech.	vent hole
通气小孔
tech.	spile-hole (桶的)

通气 孔: 72 phrases in 16 subjects

Agriculture	2
Architecture	3
Automobiles	12
Aviation	1
Compressors	1
Drilling	1
Electronics	2
Engineering geology	1
General	10
Hydroelectric power stations	1
Metallurgy	2
Nautical	1
Oil / petroleum	3
Soil science	2
Space	1
Technology	29