| |||
optical plummet | |||
optical layer (oleg.vigodsky) |
оптический уровень : 44 phrases in 9 subjects |
Cartography | 1 |
Computer networks | 1 |
Household appliances | 1 |
Lasers | 6 |
Makarov | 1 |
Mass media | 27 |
Refrigeration | 1 |
Telecommunications | 5 |
Weapons and gunsmithing | 1 |