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底孔
hydroel.st. bottom outlet; underport
oil basal pore
tech. bottom hole; bottom opening
泄水底孔
gen. undersluice
底孔
: 295 phrases in 28 subjects
Agriculture4
Architecture2
Automobiles1
Aviation1
Bridge construction3
Chemistry2
Commerce1
Drilling1
Earth sciences5
Ecology1
Electric machinery3
Electronics2
Engineering geology16
Explosives and Explosive Ordnance Disposal47
General9
Geology1
Hydroelectric power stations12
Mechanic engineering1
Metallurgy18
Mountaineering2
Oil / petroleum5
Otorhinolaryngology1
Plastics1
Polymers1
Space1
Surgery3
Technology150
Textile industry1