 |
specifical speed
| of
| pump
| specifical speed | |
| hydroel.st. | 比速 |
| of | |
| gen. | 的; …的; 关于 …的; …做成 的; 对…; … 的 |
| pump | |
| environ. | 泵 |
| |||
| 比速 | |||
| specifical speed: 4 phrases in 2 subjects |
| Electronics | 2 |
| Hydroelectric power stations | 2 |
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