 |
| |||
| 平均强度 | |||
| average strength: 12 phrases in 8 subjects |
| Bridge construction | 2 |
| Drilling | 1 |
| Engineering geology | 2 |
| Explosives and Explosive Ordnance Disposal | 1 |
| Hydroelectric power stations | 1 |
| Space | 2 |
| Technology | 1 |
| Telecommunications | 2 |
|
| |||
| 平均强度 | |||
| average strength: 12 phrases in 8 subjects |
| Bridge construction | 2 |
| Drilling | 1 |
| Engineering geology | 2 |
| Explosives and Explosive Ordnance Disposal | 1 |
| Hydroelectric power stations | 1 |
| Space | 2 |
| Technology | 1 |
| Telecommunications | 2 |