| |||
focal spot | |||
focus | |||
optical focal spot | |||
optical focus | |||
effective focal spot; focal spot (of an X-ray tube); projected focal area (spot) |
оптический фокус: 15 phrases in 9 subjects |
Aviation medicine | 1 |
Cartography | 1 |
Makarov | 3 |
Mass media | 2 |
Medical appliances | 3 |
Metallurgy | 1 |
Navigation | 1 |
Solar power | 1 |
Weapons and gunsmithing | 2 |