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| 天然气和水 | |||
| gas and water: 40 phrases in 13 subjects |
| Aviation | 1 |
| Construction | 1 |
| Consulting | 1 |
| Drilling | 16 |
| Earth sciences | 1 |
| Ecology | 1 |
| Economy | 1 |
| Explosives and Explosive Ordnance Disposal | 1 |
| Geology | 5 |
| Mining | 4 |
| Nautical | 1 |
| Oil / petroleum | 1 |
| Technology | 6 |
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