| 释义 |
minimum risk level
minimum risk level (MRL)A specific altitude or altitude block that allows homebound aircraft to return in a homebound direction without lateral restrictions.minimum risk level
minimum risk level An estimate of daily human exposure to a concentration of a chemical that has a minimal appreciable risk of cancerous effects over a specified time period.minimum risk level Toxicology An estimate of daily human exposure to a concentration of a chemical which has a minimal appreciable risk of cancerous effects over a specified time period |