 |
| |||
| back water curve | |||
| backwater curve | |||
| 回水线: 14 phrases in 5 subjects |
| Earth sciences | 1 |
| Hydroelectric power stations | 4 |
| Oil / petroleum | 1 |
| Space | 1 |
| Technology | 7 |
|
| |||
| back water curve | |||
| backwater curve | |||
| 回水线: 14 phrases in 5 subjects |
| Earth sciences | 1 |
| Hydroelectric power stations | 4 |
| Oil / petroleum | 1 |
| Space | 1 |
| Technology | 7 |