您要查找的是不是：
- median dose lethal 半数致死量
- A median dose of 20 Gy prescribed to the 80% isodose line was administered in a single fraction. 中位值为20戈瑞剂量（建议达80%25的等剂量线）以单成分方式给予患者。
- lethal median dose [医] 半数致死量
- lethal, median dose 半数致死量
- Interval low or median dose cyclophosphamide for treatment of myasthenia gravis 中小剂量环磷酰胺间隙疗法治疗重症肌无力
- The virulence of both mutants, as represented by median lethal dose (LD50), was not significantly different from that of the parental strain. 因此，细胞溶解毒素可能不是主要的致死因子，也不是创伤弧菌造成细胞毒杀作用的唯一因素。
- The median lethal dose(LC50)of 4kinds of heavy metals to S.henanense were decreased with the prolonging of the treating time. 4种重金属对河南华溪蟹的半致死剂量（LC50）随处理时间的延长而减小。
- Pot-holes can be lethal for the unwary cyclist. 路上的坑坑洼洼骑车的人一不小心就有致命危险。
- A dose of this stuff will purge you! 这种药只须一剂就能让你通便！
- METHOD:We detected median lethal dose(LD 50 )of mixture of scopolamine (SCO) and chlorpromazine(CPZ) in the different dose to mice and rats by Bliss and Brownlee sequential trial. 方法：用Blis法和Brownle序贯法分别测定不同比例东莨菪碱与氯丙嗪组合成不同比例东氯合剂后对小鼠、大鼠的半数致死量（LD50）。
- The Lethal Dose 50 test (LD50) may also be replaced. 药剂致死剂量50(LD50)试验也可以被代替。
- Give him the dose of his own medicine. [谚]以其人之道还治其人之身。
- Give him another dose----then he'll fetch up. 再给他服一剂药，他就会苏醒过来了。
- The doctor prescribed an oral dose of medicine. 医生开了一剂口服药。
- Failing the exam was a hard dose to swallow. 考试不及格是一服难咽的苦药。
- Dose this red go well with that yellow? 这一红色是不是同那一黄色相配？
- The acute lethal dose (LD50) has been reported as 3,400 mg/kg bw. 急性致死剂量（半数致死量）已被报告为3400毫克/公斤体重。
- In situation like this, she wish she have a gun or some lethal weapon. 在这种情况下，她真希望自己有一把枪或什么致命武器。
- Don't touch the bottle. It contains lethal chemicals. 不要碰这个瓶子。里面装有危险的化学品。
- Here are their lethal poison nippers. 这就是他们致命的毒螯。
