secondary recovery
| method
| secondary recovery | |
| coal. | 二次开 采 |
| oil | 二次开采 |
| method | |
| gen. | 法; 标准; 水平 |
| environ. | 方法 |
| hydroel.st. од. | 方法 |
| mech. | 电火花法 |
| |||
| 二次开〔回〕采 | |||
| 二次开采 | |||
| 二次回收; 二次回采 | |||
|
secondary recovery : 19 phrases in 7 subjects |
| Chemistry | 2 |
| Electronics | 1 |
| International trade | 1 |
| Metallurgy | 2 |
| Mining | 3 |
| Oil / petroleum | 9 |
| Technology | 1 |