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一次采油
| 采收率
| 一次采油 | |
| tech. | primary recovery |
| 采收率 | |
| avia. | recovery coefficient |
| econ. | percentage recovery |
| eng.geol. | extraction ratio |
| mining. | recovery factor |
| oil | recovery; recovery efficiency |
| tech. | recovery ratio |
| |||
| primary recovery | |||
| 一次采油: 9 phrases in 3 subjects |
| Mining | 2 |
| Oil / petroleum | 5 |
| Technology | 2 |