effective life: 18 phrases in 17 subjects |
Agrochemistry | 1 |
Biology | 1 |
Diplomacy | 1 |
Drilling | 1 |
Electronics | 1 |
Energy industry | 1 |
Finances | 1 |
General | 1 |
Makarov | 1 |
Medical | 2 |
Metrology | 1 |
Military | 1 |
Nuclear physics | 1 |
Oil / petroleum | 1 |
Physics | 1 |
Religion | 1 |
Technology | 1 |