 |
| diaphragm valve: 33 phrases in 15 subjects |
| Automated equipment | 1 |
| Automobiles | 1 |
| Construction | 2 |
| Drilling | 1 |
| Electronics | 5 |
| Firefighting and fire-control systems | 1 |
| Hydraulics | 1 |
| Makarov | 2 |
| Oil / petroleum | 2 |
| Oil and gas | 4 |
| Oilfields | 1 |
| Production | 1 |
| Refrigeration | 6 |
| Technology | 4 |
| Thermal engineering | 1 |