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| electric exploration; electrical exploration; electric prospecting; electrical prospecting; electric surveying; electrical surveying | |||
| 电法探测: 25 phrases in 7 subjects |
| Earth sciences | 2 |
| Electronics | 1 |
| General | 1 |
| Metallurgy | 1 |
| Refrigeration | 1 |
| Technology | 18 |
| Water resources | 1 |
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