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power mains
tech. 输电线; 电力输送线
wind. 输电干线
power main
oil 输电干线
power mains: 47 phrases in 16 subjects
Automobiles5
Aviation3
Computer numerical control1
Electric machinery1
Electronics3
Geophysics1
Hydroelectric power stations1
Information technology1
Metallurgy1
Oil / petroleum4
Rail transport2
Shipbuilding2
Space2
Technology17
United Nations2
Wind Energy1