| |||
| 目测资料 | |||
|
visual data : 22 phrases in 8 subjects |
| Aviation | 2 |
| Earth sciences | 2 |
| Electronics | 8 |
| Explosives and Explosive Ordnance Disposal | 2 |
| Forestry | 1 |
| General | 1 |
| Space | 3 |
| Technology | 3 |
| |||
| 目测资料 | |||
|
visual data : 22 phrases in 8 subjects |
| Aviation | 2 |
| Earth sciences | 2 |
| Electronics | 8 |
| Explosives and Explosive Ordnance Disposal | 2 |
| Forestry | 1 |
| General | 1 |
| Space | 3 |
| Technology | 3 |