 |
| |||
| environmental control system | |||
| environmental system | |||
| environmental monitoring system | |||
| система контроля состояния окружающей среды: 9 phrases in 8 subjects |
| Ecology | 1 |
| Electrical engineering | 1 |
| Energy industry | 1 |
| General | 1 |
| Makarov | 2 |
| Medical | 1 |
| Military | 1 |
| Sakhalin | 1 |