mean -free path : 33 phrases in 13 subjects |
Astronautics | 1 |
Chemistry | 1 |
Construction | 1 |
Electronics | 5 |
Household appliances | 1 |
Makarov | 4 |
Mathematics | 1 |
Nuclear physics | 3 |
Physics | 2 |
Shipbuilding | 1 |
Technology | 2 |
Transport | 2 |
Радиоактивное излучение | 9 |