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井管
bridg.constr.	riser pipe
ecol.	well tube
eng.geol.	borepipe; pipe casing
hydroel.st.	casing pipe
tech.	well electrode; well pipe; well piping; well tubing
井壁管
tech.	well tube
井口管
tech.	well casing

井 管: 606 phrases in 26 subjects

Architecture	4
Automobiles	2
Business	1
Chemistry	5
Construction	2
Drilling	91
Earth sciences	15
Ecology	1
Electronics	6
Engineering geology	27
Explosives and Explosive Ordnance Disposal	1
General	5
Geophysics	47
Hydroelectric power stations	9
Life sciences	1
Mechanics	3
Metallurgy	10
Mining	20
Nautical	4
Navigation	15
Oil / petroleum	165
Rail transport	2
Space	1
Steel production	1
Technology	164
Water resources	4