grid coordinates : 28 phrases in 12 subjects |
Artillery | 1 |
Automated equipment | 2 |
Cartography | 4 |
Construction | 4 |
Information technology | 1 |
Mathematics | 1 |
Military | 5 |
Navigation | 4 |
Oil / petroleum | 2 |
Oil and gas | 1 |
Technology | 2 |
Telecommunications | 1 |