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| high direct voltage | |||
| 高直流电压: 26 phrases in 9 subjects |
| Aviation | 2 |
| Business | 1 |
| Drilling | 1 |
| Earth sciences | 1 |
| Electric machinery | 2 |
| Electronics | 6 |
| General | 2 |
| Hydroelectric power stations | 1 |
| Technology | 10 |
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