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拱板 gǒng bǎn
bridg.constr. arch slab; arched slab
eng.geol. arch bar
tech. arch cover; arch covering; arch sheeting
拱板: 153 phrases in 14 subjects
Architecture15
Automobiles5
Bridge construction7
Electronics2
Engineering geology3
Furniture1
General2
Metallurgy3
Oil / petroleum2
Plastics1
Rail transport3
Shipbuilding4
Technology104
Water resources1