 |
| |||
| 冲击过程 | |||
| impact process: 7 phrases in 4 subjects |
| Earth sciences | 1 |
| Explosives and Explosive Ordnance Disposal | 2 |
| Technology | 3 |
| Water resources | 1 |
|
| |||
| 冲击过程 | |||
| impact process: 7 phrases in 4 subjects |
| Earth sciences | 1 |
| Explosives and Explosive Ordnance Disposal | 2 |
| Technology | 3 |
| Water resources | 1 |