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通气井
hydroel.st.
ventilating shaft
;
air pit
;
air well
tech.
breathing well
;
vent shaft
通气井〔道〕
gen.
airway
通 气井
:
9 phrases
in 5 subjects
Drilling
1
Engineering geology
1
Hydroelectric power stations
2
Oil / petroleum
1
Technology
4
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