locking mechanism: 41 phrases in 16 subjects |
Artillery | 1 |
Astronautics | 1 |
Automated equipment | 2 |
Aviation | 7 |
Electronics | 1 |
General | 1 |
Leather | 1 |
Makarov | 2 |
Medical appliances | 3 |
Metallurgy | 1 |
Military | 4 |
Plastics | 1 |
SAP tech. | 2 |
Shipbuilding | 1 |
Technology | 10 |
Transport | 3 |