| |||
| 连接三角形 | |||
|
connection triangle : 7 phrases in 5 subjects |
| Aviation | 1 |
| Electronics | 1 |
| Explosives and Explosive Ordnance Disposal | 1 |
| Surveying | 1 |
| Technology | 3 |
| |||
| 连接三角形 | |||
|
connection triangle : 7 phrases in 5 subjects |
| Aviation | 1 |
| Electronics | 1 |
| Explosives and Explosive Ordnance Disposal | 1 |
| Surveying | 1 |
| Technology | 3 |