 |
| |||
| beam distance | |||
| 梁间 间距: 15 phrases in 5 subjects |
| Architecture | 1 |
| Chemistry | 1 |
| Construction | 1 |
| Hydroelectric power stations | 1 |
| Technology | 11 |
|
| |||
| beam distance | |||
| 梁间 间距: 15 phrases in 5 subjects |
| Architecture | 1 |
| Chemistry | 1 |
| Construction | 1 |
| Hydroelectric power stations | 1 |
| Technology | 11 |