 |
| |||
| Newtonian focus | |||
| image focus | |||
| primary narrowing | |||
| prime focus (телескопа); principal focus (телескопа) | |||
| principal focus (point) | |||
| focus | |||
| principal focus | |||
| prime focus | |||
| principal focus (параллельных лучей) | |||
| focal point | |||
| |||
| focuses | |||
|
главный фокус : 15 phrases, 6 sujets |
| Astronomie | 3 |
| Automobiles | 1 |
| Cartographie | 1 |
| Géophysique | 3 |
| Médias de masse | 5 |
| Nanotechnologie | 2 |