 |
| |||
| friction composition (以摩擦激发的爆燃性混合起爆药) | |||
| 摩擦药: 4 phrases in 2 subjects |
| Explosives and Explosive Ordnance Disposal | 3 |
| Technology | 1 |
|
| |||
| friction composition (以摩擦激发的爆燃性混合起爆药) | |||
| 摩擦药: 4 phrases in 2 subjects |
| Explosives and Explosive Ordnance Disposal | 3 |
| Technology | 1 |