piston valve: 88 phrases in 21 subjects |
Armored vehicles | 4 |
Automated equipment | 6 |
Automobiles | 4 |
Aviation | 1 |
Construction | 2 |
Drilling | 4 |
Informal | 1 |
Mechanic engineering | 11 |
Mechanics | 2 |
Military | 1 |
Nuclear and fusion power | 1 |
Oil / petroleum | 8 |
Oil and gas | 2 |
Oil and gas technology | 3 |
Packaging | 1 |
Rail transport | 2 |
Sakhalin | 1 |
Shipbuilding | 2 |
Technology | 19 |
Thermal engineering | 7 |
Transport | 6 |