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顶水 : 49 phrases in 11 subjects |
| Cartography | 1 |
| Construction | 1 |
| Drilling | 1 |
| Electronics | 6 |
| General | 25 |
| Geology | 1 |
| Oil and gas technology | 1 |
| Oil processing plants | 4 |
| Oilfields | 4 |
| Technology | 4 |
| Water resources | 1 |
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