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管沟 guǎngōu
gen.	tunnel
chem.	trench (for underground pipe line)
dril.	pipe trench
el.	pipe gallery
met.	pipe canal
oil	pipeline ditch; pipeline trench
plast.	trench
tech.	drain pipe; duct way; pipe alley; pipe ditch; pipe drain; pipe duct; pipe sewer; pipe tunnel; piping trench; tube alley; tube canal; tube ditch; tube duct; tube sewer; tube trench; tube tunnel; pit
管〔地，排水，电缆〕沟
gen.	trench

管沟: 304 phrases in 37 subjects

Advertising	1
Agriculture	6
Air defense	1
Anatomy	3
Animal husbandry	1
Architecture	2
Automobiles	1
Aviation	1
Communications	1
Corporate governance	1
Dermatology	1
Desert science	1
Drilling	1
Ecology	8
Electronics	82
Engineering geology	4
General	1
Hydraulics	2
Hydroelectric power stations	6
Hydrology	1
Latin	1
Metallurgy	3
Nursing	1
Oil / petroleum	21
Otorhinolaryngology	4
Plastics	4
Project management	1
Rail transport	3
Refrigeration	3
Reproductive biology	3
Semiconductors	2
Space	3
Surgery	5
Technology	119
Telecommunications	3
Textile industry	2
Water resources	1