 |
| |||
| 炸药级类强度; 猛度级类 | |||
| grade strength: 9 phrases in 4 subjects |
| Bridge construction | 2 |
| Explosives and Explosive Ordnance Disposal | 3 |
| Rail transport | 1 |
| Technology | 3 |
|
| |||
| 炸药级类强度; 猛度级类 | |||
| grade strength: 9 phrases in 4 subjects |
| Bridge construction | 2 |
| Explosives and Explosive Ordnance Disposal | 3 |
| Rail transport | 1 |
| Technology | 3 |