| 释义 |
noise immission level noise immission level[¦nȯiz i¦mish·ən ‚lev·əl] (acoustics) A measure of the cumulative noise energy to which an individual is exposed over time; equal to the average noise level to which the person has been exposed, in decibels, plus 10 times the logarithm of the number of years for which the individual is exposed. |