 |
| |||
| 筛分粒度 | |||
|
passing size : 8 phrases in 3 subjects |
| Explosives and Explosive Ordnance Disposal | 5 |
| Hydroelectric power stations | 1 |
| Technology | 2 |
|
| |||
| 筛分粒度 | |||
|
passing size : 8 phrases in 3 subjects |
| Explosives and Explosive Ordnance Disposal | 5 |
| Hydroelectric power stations | 1 |
| Technology | 2 |