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electrical level : 21 phrases in 12 subjects |
Construction | 2 |
Electrical engineering | 1 |
Energy system | 1 |
Labor organization | 1 |
Mass media | 5 |
Medical | 1 |
Nautical | 1 |
Occupational health & safety | 2 |
Oil / petroleum | 3 |
Technology | 2 |
Telecommunications | 1 |
Thermal engineering | 1 |