| русский | rus-000 |
| периодические колебания | |
| English | eng-000 | cyclical fluctuations |
| English | eng-000 | periodic motion |
| English | eng-000 | periodic oscillation |
| English | eng-000 | periodic oscillations |
| English | eng-000 | periodic vibrations |
| English | eng-000 | periodical fluctuations |