| |||
primary narrowing | |||
Newtonian focus | |||
focal point | |||
prime focus (телескопа); principal focus (телескопа) | |||
principal focus (point) | |||
prime focus | |||
focus | |||
principal focus | |||
| |||
focuses | |||
focus |
главный фокус : 12 phrases in 5 subjects |
Astronomy | 3 |
Automobiles | 1 |
Cartography | 1 |
Mass media | 5 |
Nanotechnology | 2 |