valve head : 82 phrases in 19 subjects |
Armored vehicles | 5 |
Automobiles | 16 |
Construction | 2 |
Drilling | 1 |
Electronics | 1 |
Karachaganak | 1 |
Military | 1 |
Mining | 1 |
Nautical | 4 |
Oil / petroleum | 1 |
Public utilities | 1 |
Rail transport | 3 |
Refrigeration | 1 |
Shipbuilding | 1 |
Submarines | 1 |
Technology | 37 |
Thermal engineering | 1 |
Transport | 3 |
Water supply | 1 |