 |
| |||
| 河床; 河底 | |||
| bed of river: 39 phrases in 5 subjects |
| Agriculture | 1 |
| Bridge construction | 22 |
| Engineering geology | 3 |
| Hydroelectric power stations | 6 |
| Technology | 7 |
|
| |||
| 河床; 河底 | |||
| bed of river: 39 phrases in 5 subjects |
| Agriculture | 1 |
| Bridge construction | 22 |
| Engineering geology | 3 |
| Hydroelectric power stations | 6 |
| Technology | 7 |