短语
等效连续A声级
equivalent continuous A sound level
工作日等效连续A声级
equivalent continuous A-weighted sound pressure level
等效A声级
equivalent A-weighted sound pressure level
比A声级
specific A-weighted sound level
噪声A声级
noise grade
表面平均A声级
average voice level of a grade in surface
比A声级噪声
dB