minimum lethal dose

例句：

1. 1. The study found that the minimum lethal dose of a poisonous substance was 0.5 grams.
   研究发现，某种毒物的最小致死剂量为0.5克。
2. 2. The researchers determined the minimum lethal dose for the drug in question.
   研究人员确定了该药物的最小致死剂量。
3. 3.The manufacturer warns consumers to avoid ingesting any food product with a minimum lethal dose below 500 mg per serving.
   制造商警告消费者避免摄入任何每份低于500毫克的致命剂量的食品。