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| ножевая задвижка (в заправочной секции камеры затаривания Anel_anel) | |||
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| ножевая задвижка (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: 4 phrases in 3 subjects |
| Drilling | 1 |
| Geology | 1 |
| Technology | 2 |