 |
| |||
| 当量噪声级 | |||
| 等效噪声电平 | |||
| 等效噪声级 | |||
| equivalent noise level: 17 phrases in 7 subjects |
| Aviation | 4 |
| Business | 1 |
| Electronics | 5 |
| Geophysics | 1 |
| Otorhinolaryngology | 2 |
| Space | 1 |
| Technology | 3 |
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