“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 acme of wisdom, enabling one to reach the other shore (prajñāpāramitā) the actiotope model of giftgedness The Actors Studio the actuating principle relied on electro-conjugated fluid The Acupuncture and Moxibustion Drawing from Shennong Huangdi The Acupuncture Manipulation of Master Dou T-head the adaptive reuse of industrial buildings the added worker effect The Adding Machine thead in hank the administration of archives business the administration of the natural resources the administrative supervision commissioner system The Admirable Crichton the Admirable Garden the admonition of official The Adopted Son The Adoration of Magi The Adulteress The Advanced Dictionary of Uygur Language The Advancement of Learning The Adventure of the Head of Mamlouk Jabir The Adventures of a Little Rag Doll The Adventures of Caleb Williams

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