 |
| |||
| infra acoustic; low-frequency; subsonic | |||
| subsonic; subaudio ([of a sound] low-frequency); low-frequency | |||
| infrasonic; infra-acoustic | |||
| subaudio | |||
| подтональный: 42 phrases in 11 subjects |
| Acoustics | 1 |
| American usage, not spelling | 1 |
| British usage, not spelling | 1 |
| Communications | 5 |
| Computer networks | 1 |
| Electronics | 5 |
| Makarov | 3 |
| Mass media | 8 |
| Technology | 12 |
| Telecommunications | 4 |
| Telegraphy | 1 |