| |||
octave band | |||
octave; one-half octave 1/2; one-third octave 1/3 | |||
third-octave 1/3 | |||
| |||
centi-octave | |||
| |||
centi-octave | |||
| |||
octave | |||
| |||
third-octave |
倍频程 : 34 phrases in 11 subjects |
Air defense | 1 |
Automobiles | 2 |
Earth sciences | 1 |
Electric machinery | 1 |
Electronics | 7 |
General | 2 |
Nautical | 2 |
Otorhinolaryngology | 2 |
Space | 4 |
Technology | 11 |
Telecommunications | 1 |