 |
| |||
| pumps in series | |||
| pump in series | |||
| 泵串联: 13 phrases in 5 subjects |
| Earth sciences | 1 |
| Hydroelectric power stations | 1 |
| Nautical | 2 |
| Oil / petroleum | 2 |
| Technology | 7 |
|
| |||
| pumps in series | |||
| pump in series | |||
| 泵串联: 13 phrases in 5 subjects |
| Earth sciences | 1 |
| Hydroelectric power stations | 1 |
| Nautical | 2 |
| Oil / petroleum | 2 |
| Technology | 7 |