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断开电压 | |||
释放电压 |
release voltage: 30 phrases in 12 subjects |
Aviation | 2 |
Electricity | 1 |
Electronics | 4 |
General | 1 |
Geophysics | 2 |
Hydroelectric power stations | 2 |
Information technology | 1 |
Metallurgy | 2 |
Nautical | 1 |
Oil processing plants | 1 |
Power system protection | 2 |
Technology | 11 |