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third-octave
1 3
| third-octave | |
| tech. | 1/3 倍频程 |
| |||
| 1/3 倍频程的 | |||
| third-octave: 9 phrases in 7 subjects |
| Electric machinery | 1 |
| Electronics | 1 |
| Nautical | 2 |
| Refrigeration | 1 |
| Space | 1 |
| Technology | 2 |
| Telecommunications | 1 |
|
| third-octave | |
| tech. | 1/3 倍频程 |
| |||
| 1/3 倍频程的 | |||
| third-octave: 9 phrases in 7 subjects |
| Electric machinery | 1 |
| Electronics | 1 |
| Nautical | 2 |
| Refrigeration | 1 |
| Space | 1 |
| Technology | 2 |
| Telecommunications | 1 |