| |||
| половинный угол; угол полураствора | |||
|
one- half angle : 12 phrases in 3 subjects |
| Astronautics | 2 |
| Mass media | 9 |
| Mechanic engineering | 1 |
| |||
| половинный угол; угол полураствора | |||
|
one- half angle : 12 phrases in 3 subjects |
| Astronautics | 2 |
| Mass media | 9 |
| Mechanic engineering | 1 |