Maximum Permissible Exposure Level
maximum permissible exposure
最大容许照射
最大容许辐照量
最大许可辐射量(MPE)
最大野i曝露
maximum permissible level
maximum-permissible level
PEL=permissible exposure limit
permissible exposure limit
Permissible exposure limits
A weighted sound exposure level
Cumulative exposure level
cumulative exposure level of total 16 polycyclic aromatic hydrocarbons
Cumulative Radon Daughter Exposure Level
occupational exposure level
Occupational hazard exposure level
Light-Exposure and Light-and-Water-Exposure Apparatus
4-level frequency modulation (4-level FM)