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68分贝相当于什么声音
更新时间: 2020-11-04 00:00:00  

68分贝相当于你在大声说话的声音。20~40分贝相当于说悄悄话的声音。40~60分贝相当于正常交流的声音。85分贝及以下不会破坏耳蜗内的毛细胞,胎教时声音最好不要超过80分贝,80分会略感吵闹。.

关键词: 分贝 相当 什么 声音

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