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封层 fēngcéng
eng.geol. blinding course; seal course
oil seal coat
tech. seal
met. seal coat; sealing coat
封层: 296 phrases in 34 subjects
Agriculture2
Architecture3
Automobiles8
Bridge construction6
Business2
Chemistry2
Construction4
Drilling10
Earth sciences1
Ecology2
Electronics23
Engineering geology11
Explosives and Explosive Ordnance Disposal1
General5
Geology2
Geophysics1
Hydroelectric power stations6
Information technology1
Mechanics1
Metallurgy6
Military1
Mining3
Nautical2
Oil / petroleum35
Physics1
Plastics4
Polygraphy2
Project management1
Rail transport1
Refrigeration3
Shipbuilding1
Space4
Sports1
Technology140