 |
| |||
| pilot-operated valve (Groth Corporation terminology POV Major Tom); POV (pilot-operated valve Major Tom) | |||
| pulse safety device | |||
| |||
| pilot-operated safety valve (Quelle) | |||
| импульсное предохранительное устройство: 3 do fraz, 2 tematyki |
| Pospolicie | 1 |
| Przemysł energetyczny | 2 |