 |
| |||
| видимая область спектра | |||
| видимый участок спектра | |||
|
sichtbarer Spektralbereich : 3 phrases in 2 subjects |
| Astronomy | 1 |
| Quantum electronics | 2 |
The server is undergoing maintenance and the site is working in read-only mode. Please check back later.">Add | The server is undergoing maintenance and the site is working in read-only mode. Please check back later.">Report an error
| Get short URL | Language Selection Tips