【医】容许暴露水平,容许照射(量)级

permissible exposure permissible exposure level permissible deviation permissible variation permissible contamination permissible concentration permissible coalcutter permissible discharge permissible current permissible overload permissible level maximum permissible exposure (MPE) maximum permissible exposure permissible exposure dose exposure level permissible noise level maximum permissible noise level permissible residue level maximum permissible contamination level maximum permissible level