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| 气体 | |||
| 气态流体 | |||
| gas fluid: 15 phrases in 7 subjects |
| Drilling | 2 |
| Explosives and Explosive Ordnance Disposal | 1 |
| General | 1 |
| Mining | 1 |
| Oil / petroleum | 4 |
| Oil processing plants | 1 |
| Technology | 5 |
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