 |
| |||
| proportional pressure valve (Boris54) | |||
| proportional valve | |||
| Propvalve (Esperantia) | |||
| proportional pressure control valve; ratio valve | |||
| пропорциональный клапан: 30 phrases in 9 subjects |
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| Makarov | 2 |
| Oil and gas technology | 1 |
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| Technology | 16 |
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| Valves | 1 |