| |||
| 结构和材料 | |||
|
structures and materials : 11 phrases in 7 subjects |
| Aviation | 2 |
| Earth sciences | 1 |
| Explosives and Explosive Ordnance Disposal | 1 |
| General | 4 |
| Hydroelectric power stations | 1 |
| Securities | 1 |
| Technology | 1 |
| |||
| 结构和材料 | |||
|
structures and materials : 11 phrases in 7 subjects |
| Aviation | 2 |
| Earth sciences | 1 |
| Explosives and Explosive Ordnance Disposal | 1 |
| General | 4 |
| Hydroelectric power stations | 1 |
| Securities | 1 |
| Technology | 1 |