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词汇
dB
释义
dB
分贝(=Decibel)
就声音而言,是计算音量单位。以电子而言,是两个电力等级之间的相对差额,1分贝是一贝耳(bel)的十分之一。一般住家的音量约在40dB,一般对话平均音量约60dB,音乐播放音量一般约在85dB,摇滚乐队的音量可达110dB,喷射机引擎音量则将近150dB。
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更新时间:2026/5/29 23:17:33