 |
| |||
| густота сети опорных точек | |||
|
control density : 24 phrases in 14 subjects |
| Aviation | 4 |
| Construction | 1 |
| Electronics | 2 |
| Forestry | 1 |
| Military | 3 |
| Mining | 1 |
| NATO | 2 |
| Oil / petroleum | 1 |
| Polygraphy | 1 |
| Refrigeration | 1 |
| Road works | 2 |
| Sakhalin A | 1 |
| Technology | 3 |
| Telecommunications | 1 |