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| 电压电平 | |||
| 电压等级 | |||
| voltage level: 23 phrases in 9 subjects |
| Aviation | 5 |
| Communications | 1 |
| Electric machinery | 1 |
| Electronics | 5 |
| Geophysics | 1 |
| Hydroelectric power stations | 1 |
| Metallurgy | 1 |
| Oil / petroleum | 1 |
| Technology | 7 |
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