 |
| |||
| 有效角 | |||
|
effective angle : 22 phrases in 11 subjects |
| Aviation | 4 |
| Bridge construction | 2 |
| Construction | 1 |
| Engineering geology | 2 |
| Hydroelectric power stations | 1 |
| Mechanic engineering | 1 |
| Nautical | 2 |
| Rail transport | 1 |
| Space | 1 |
| Technology | 6 |
| Wind Energy | 1 |
|
| |||
| 有效角 | |||
|
effective angle : 22 phrases in 11 subjects |
| Aviation | 4 |
| Bridge construction | 2 |
| Construction | 1 |
| Engineering geology | 2 |
| Hydroelectric power stations | 1 |
| Mechanic engineering | 1 |
| Nautical | 2 |
| Rail transport | 1 |
| Space | 1 |
| Technology | 6 |
| Wind Energy | 1 |