 |
| |||
| 按日期顺序 (date) | |||
|
in sequence of : 12 phrases in 6 subjects |
| Drilling | 1 |
| Economics | 2 |
| Explosives and Explosive Ordnance Disposal | 2 |
| General | 1 |
| Metallurgy | 5 |
| Name of organization | 1 |
|
| |||
| 按日期顺序 (date) | |||
|
in sequence of : 12 phrases in 6 subjects |
| Drilling | 1 |
| Economics | 2 |
| Explosives and Explosive Ordnance Disposal | 2 |
| General | 1 |
| Metallurgy | 5 |
| Name of organization | 1 |