 |
| |||
| knife valve (For extremely thick fluids, a specialty valve often known as a knife valve is used to cut through the liquid. WK Alexander Demidov) | |||
| Knife valve (в заправочной секции камеры затаривания Anel_anel) | |||
| ножевая задвижка: 7 phrases in 5 subjects |
| Drilling | 1 |
| Geology | 1 |
| Oilfields | 1 |
| Rail transport | 1 |
| Technology | 3 |