| |||
| спектральная чистота | |||
| чистота спектра | |||
|
purity of spectrum : 3 phrases in 3 subjects |
| Astronomy | 1 |
| Geophysics | 1 |
| Metallurgy | 1 |
| |||
| спектральная чистота | |||
| чистота спектра | |||
|
purity of spectrum : 3 phrases in 3 subjects |
| Astronomy | 1 |
| Geophysics | 1 |
| Metallurgy | 1 |