 |
| on centers: 99 phrases in 28 subjects |
| Abbreviation | 1 |
| American usage, not spelling | 1 |
| Automated equipment | 1 |
| Aviation | 4 |
| Biology | 2 |
| Business | 1 |
| Cartography | 8 |
| Chess | 7 |
| Drilling | 1 |
| Ecology | 10 |
| Electronics | 2 |
| Energy industry | 4 |
| Environment | 3 |
| General | 15 |
| International Monetary Fund | 1 |
| Law | 2 |
| Makarov | 3 |
| Mechanic engineering | 11 |
| Mechanics | 1 |
| Medical | 4 |
| Military | 3 |
| Occupational health & safety | 1 |
| Oil and gas | 3 |
| Politics | 2 |
| SAP | 1 |
| Scientific | 1 |
| Technology | 4 |
| Weapons of mass destruction | 2 |