 |
| |||
| 油气比 | |||
| oil gas ratio: 58 phrases in 9 subjects |
| Business | 2 |
| Drilling | 1 |
| Earth sciences | 2 |
| Ecology | 1 |
| Management | 1 |
| Mining | 11 |
| Oil / petroleum | 28 |
| Technology | 11 |
| Textile industry | 1 |
|
| |||
| 油气比 | |||
| oil gas ratio: 58 phrases in 9 subjects |
| Business | 2 |
| Drilling | 1 |
| Earth sciences | 2 |
| Ecology | 1 |
| Management | 1 |
| Mining | 11 |
| Oil / petroleum | 28 |
| Technology | 11 |
| Textile industry | 1 |