 |
| |||
| free period of motion | |||
| natural period of vibrations | |||
| free oscillation period | |||
| eigenperiod; free-swing period; natural period of oscillation; natural time of oscillation | |||
| natural period of oscillations; free period (маятника); free-swing period (маятника) | |||
| fundamental period | |||
| period of free oscillation; period of free oscillations | |||
| natural periods | |||
| natural period of vibration | |||
| free period; natural period | |||
| |||
| natural period of swing (маятника сейсмографа); natural period of oscillation (маятника сейсмографа); free period (маятника сейсмографа); free-swing period (маятника сейсмографа) | |||
| natural period | |||
| |||
| natural period | |||
| период собственных колебаний: 13 phrases in 10 subjects |
| Acoustics | 1 |
| Automobiles | 1 |
| Geophysics | 1 |
| Hydrology | 1 |
| Makarov | 2 |
| Nautical | 2 |
| Oil / petroleum | 1 |
| Oil and gas | 1 |
| Seismology | 1 |
| Technology | 2 |