资料来源 : pyDict

分贝decibel的简写

资料来源 : WordNet®

dB
     n : a logarithmic unit of sound intensity; 10 times the
         logarithm of the ratio of the sound intensity to some
         reference intensity [syn: {decibel}]

资料来源 : Free On-Line Dictionary of Computing

DB
     
        {database}