 |
| |||
| solar spectrum | |||
|
太阳 光 谱 : 32 phrases in 8 subjects |
| Aviation | 3 |
| Earth sciences | 3 |
| Electronics | 1 |
| General | 1 |
| Medical | 1 |
| Physics | 1 |
| Space | 16 |
| Technology | 6 |
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