 |
| |||
| 颗粒组成 (composition) | |||
|
particle component : 4 phrases in 2 subjects |
| Explosives and Explosive Ordnance Disposal | 3 |
| Technology | 1 |
|
| |||
| 颗粒组成 (composition) | |||
|
particle component : 4 phrases in 2 subjects |
| Explosives and Explosive Ordnance Disposal | 3 |
| Technology | 1 |