| |||
| 秒延时雷管段间隔时间为lsecond2s的延时雷管 | |||
| 秒延迟雷管; 秒差雷管 | |||
|
second delay detonator : 11 phrases in 2 subjects |
| Explosives and Explosive Ordnance Disposal | 3 |
| Technology | 8 |
| |||
| 秒延时雷管段间隔时间为lsecond2s的延时雷管 | |||
| 秒延迟雷管; 秒差雷管 | |||
|
second delay detonator : 11 phrases in 2 subjects |
| Explosives and Explosive Ordnance Disposal | 3 |
| Technology | 8 |