 |
| |||
| spherical valve | |||
| ball-type valve (разновидность искусственного клапана сердца) | |||
| ball valve; ball clack; ballcock | |||
| seat-and-ball valve | |||
| ball-actuated valve (ssn) | |||
| шариковый клапан: 35 phrases, 12 sujets |
| Automobiles | 1 |
| Champs de pétrole | 2 |
| Construction | 1 |
| Forage | 4 |
| Makarov | 1 |
| Médical | 3 |
| Pétrole / pétrole | 3 |
| Pétrole et gaz | 2 |
| Production | 2 |
| Sakhaline A | 1 |
| Technologie | 12 |
| Technologie pétrolière et gazière | 3 |