英语翻译A chemical that has a median lethal dose (LD50) of more than 50 milligrams per kilogram but not more than 500 milligrams per kilogram of body weight when administered orally to albino rats weighing between 200 and 300 grams each.

问题描述:

英语翻译
A chemical that has a median lethal dose (LD50) of more than 50 milligrams per kilogram but not more than 500 milligrams per kilogram of body weight when administered orally to albino rats weighing between 200 and 300 grams each.

一种化学物质,每kg里半数致死的剂量超过50毫克,但是当给一个体重在200-300g之间的白鼠口服的时候,这种化学物质的致死剂量每kg不会超过500毫克.