 |
| |||
| полупериод; период полураспада (радиоактивного элемента) | |||
| |||
| период полураспада | |||
|
半寿 期 : 2 phrases in 2 subjects |
| Environment | 1 |
| General | 1 |
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