 |
| |||
| 当量持续噪声级 | |||
| 等效连续噪声电平 | |||
| 等效连续噪声级 | |||
| equivalent continuous noise level: 9 phrases in 5 subjects |
| Aviation | 2 |
| Business | 1 |
| Electronics | 3 |
| Otorhinolaryngology | 2 |
| Technology | 1 |
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