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| head coefficient | |||
| pump head coefficient (MichaelBurov) | |||
| коэффициент напора: 16 phrases in 10 subjects |
| Automobiles | 2 |
| Construction | 2 |
| Drilling | 2 |
| Energy industry | 1 |
| Nanotechnology | 1 |
| Oil / petroleum | 2 |
| Refrigeration | 2 |
| Sakhalin A | 1 |
| Technology | 2 |
| Water resources | 1 |