请输入您要查询的字词:

 

单词 LC50
释义
LC50

Chemical Engineering
  • The lethal concentration of an airborne or waterborne chemical substance that causes the death of half (50 per cent) of a group of exposed test animals in a given time, which is usually four hours. It is used as a measure of the toxicity of a substance and is expressed in micrograms or milligrams per litre, or parts per million of air or water. The lower the value, the more toxic the substance.


随便看

 

科学参考收录了60776条科技类词条,基本涵盖了常见科技类参考文献及英语词汇的翻译,是科学学习和研究的有利工具。

 

Copyright © 2000-2023 Sciref.net All Rights Reserved
京ICP备2021023879号 更新时间:2024/12/25 15:22:44