 |
| |||
| 恒形状回归 | |||
| constant shape: 7 phrases in 5 subjects |
| Bridge construction | 1 |
| Earth sciences | 2 |
| Geophysics | 1 |
| Hydroelectric power stations | 1 |
| Technology | 2 |
|
| |||
| 恒形状回归 | |||
| constant shape: 7 phrases in 5 subjects |
| Bridge construction | 1 |
| Earth sciences | 2 |
| Geophysics | 1 |
| Hydroelectric power stations | 1 |
| Technology | 2 |