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| conventional well-flushing | |||
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正洗 : 15 phrases in 7 subjects |
| Chemistry | 1 |
| Drilling | 1 |
| Engineering geology | 1 |
| Explosives and Explosive Ordnance Disposal | 2 |
| Oil / petroleum | 2 |
| Technology | 7 |
| Wind Energy | 1 |
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