 |
| |||
| combination tower; combined column; integrated tower | |||
| composite tower | |||
| 复合塔: 10 phrases in 4 subjects |
| Desert science | 5 |
| Drilling | 1 |
| Oil / petroleum | 3 |
| Technology | 1 |
|
| |||
| combination tower; combined column; integrated tower | |||
| composite tower | |||
| 复合塔: 10 phrases in 4 subjects |
| Desert science | 5 |
| Drilling | 1 |
| Oil / petroleum | 3 |
| Technology | 1 |