 |
| |||
| 气态烃 | |||
| gas hydrocarbon: 22 phrases in 7 subjects |
| Geology | 2 |
| Metallurgy | 4 |
| Nautical | 1 |
| Oil / petroleum | 4 |
| Oil processing plants | 1 |
| Polygraphy | 1 |
| Technology | 9 |
|
| |||
| 气态烃 | |||
| gas hydrocarbon: 22 phrases in 7 subjects |
| Geology | 2 |
| Metallurgy | 4 |
| Nautical | 1 |
| Oil / petroleum | 4 |
| Oil processing plants | 1 |
| Polygraphy | 1 |
| Technology | 9 |