 |
| |||
| 地下矿开采 | |||
| |||
| 矿山采石; 矿石 | |||
| mine quarrying: 7 phrases in 4 subjects |
| Earth sciences | 1 |
| Explosives and Explosive Ordnance Disposal | 1 |
| General | 3 |
| Technology | 2 |
|
| |||
| 地下矿开采 | |||
| |||
| 矿山采石; 矿石 | |||
| mine quarrying: 7 phrases in 4 subjects |
| Earth sciences | 1 |
| Explosives and Explosive Ordnance Disposal | 1 |
| General | 3 |
| Technology | 2 |