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| PVSV (Pressure Vacuum Safety Valve warsheep) | |||
| vacuum valve; vacuum-safety valve (дренажной системы топливных баков) | |||
| Pressure Vacuum Safety Valve (Yeldar Azanbayev) | |||
| pressure-vacuum relief valve | |||
| vacuum relief valve | |||
| вакуумный предохранительный клапан: 4 phrases in 3 subjects |
| Sakhalin | 2 |
| Sakhalin R | 1 |
| Technology | 1 |