 |
| |||
| 试验位点 | |||
| 试用地点 | |||
| trial site: 6 phrases in 3 subjects |
| Engineering geology | 3 |
| Explosives and Explosive Ordnance Disposal | 1 |
| Metallurgy | 2 |
|
| |||
| 试验位点 | |||
| 试用地点 | |||
| trial site: 6 phrases in 3 subjects |
| Engineering geology | 3 |
| Explosives and Explosive Ordnance Disposal | 1 |
| Metallurgy | 2 |