| |||
| 因子结构 | |||
|
factor structure : 19 phrases in 12 subjects |
| Agriculture | 1 |
| Aviation | 1 |
| Chemistry | 2 |
| Earth sciences | 1 |
| Explosives and Explosive Ordnance Disposal | 1 |
| Hydroelectric power stations | 3 |
| Metallurgy | 3 |
| Nuclear physics | 1 |
| Polymers | 1 |
| Securities | 1 |
| Space | 1 |
| Technology | 3 |