动态噪声压缩 dnr dynamic noise reduction: 动态降噪电路dynamic noise reduction system: 动态噪声降低系统noise reduction: 减噪; 降噪技术; 降噪系统; 消声; 噪声减低; 噪声减少; 噪声降低; 噪声消减; 噪声抑制; 噪音减弱; 噪音抑制dynamic noise: 动态噪声noise abatement; noise reduction: 减声下载手机词典可随时随地查词查翻译