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| high-voltage test with working frequency | |||
| power frequency high-voltage | |||
| 工频耐压: 13 phrases in 6 subjects |
| Electric machinery | 1 |
| Electricity generation | 1 |
| Electronics | 2 |
| Hydroelectric power stations | 3 |
| Rail transport | 4 |
| Technology | 2 |
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