 |
| |||
| 附加压力 | |||
| additive pressure: 12 phrases in 6 subjects |
| Architecture | 1 |
| Automobiles | 1 |
| Drilling | 1 |
| Hydroelectric power stations | 1 |
| Oil / petroleum | 3 |
| Technology | 5 |
|
| |||
| 附加压力 | |||
| additive pressure: 12 phrases in 6 subjects |
| Architecture | 1 |
| Automobiles | 1 |
| Drilling | 1 |
| Hydroelectric power stations | 1 |
| Oil / petroleum | 3 |
| Technology | 5 |