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回投〔冲,行〕
gen. backing up
telecom. back up
回投: 197 phrases in 29 subjects
Advertising1
Architecture1
Bowling1
Business21
Chemistry1
China1
Commerce8
Earth sciences2
Ecology1
Economy27
Electronics5
Exhibitions1
Explosives and Explosive Ordnance Disposal1
Finances9
General2
Hydroelectric power stations1
International Monetary Fund4
International trade2
Metallurgy1
Mining1
Oil / petroleum13
Project management10
Rail transport1
Refrigeration2
Securities37
Shipbuilding1
Space1
Technology37
Textile industry4