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电源 |
electric source : 32 phrases in 13 subjects |
Automobiles | 1 |
Aviation | 4 |
Business | 2 |
Communications | 1 |
Electric machinery | 5 |
Electronics | 2 |
Geophysics | 2 |
Mechanics | 1 |
Metallurgy | 1 |
Rail transport | 1 |
Shipbuilding | 1 |
Technology | 10 |
Telecommunications | 1 |