“lethal concentration 50”的概念、定义、翻译、参考文献-科学参考

单词	lethal concentration 50
释义	lethal concentration 50 Encyclopedia 理学半数致死浓度释 lethal concentration 50 ；LC50半数致死浓度能使一群动物在接触外源化学物一定时间后并在一定观察期限内死亡50%所需的浓度。衡量存在于水中的毒物对水生动物和存在于空气中的毒物对哺乳动物乃至人类的毒性大小的重要参数。一般以毫克/米3表示空气中的外源化学物浓度，以毫克/升表示水中的外源化学物浓度。
随便看	The Esoterica of Master Dou the essay of calligraphy strokes discussion The Essence of Chinese crosstalk The Essence of Christianity The Essence of Religion The Essence of the Novel The Essence Set of Acupuncture Classic The Essential Keys of Ancient Proses The Essentials of Government during the Reigns of Three Emperors of Late Song Dynasty The Essentials of Painting The Essentials of the Mongolian Language The Estrangement the eternal flow and circulation The Eternal Storehouse of Japan The Eternal Wave the ethical thoughts of Marxism of China the ethical thoughts of the Sophist The Ethics of Care and Empathy The Ethics of Care: Personal, Political and Global the ethics of land resources the ethics of library The Ethnic Publishing House the eulogy of historical narrative The Eulogy to Quyuan The Eulogy to Wang Zhongxuan

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