“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 Malcontent The Maltese Falcon The Man the management concept of foreign museums the management of electronic documents the management policy of balanced market price in ancient China The Manchu-Chinese Ryming Dictionary The Mandate of Heaven as an idea of history the Mang dragon patterns The Manila Times The Man in the Case the manuscript of clapperBangzi oOpera in Fengzhen City The Man Who Planted Trees The Man Who Was Left As Nine Pairs of Shoes The Man Without A Past The Man with the Golden Touch the man with virtue completed The Maple Literary Society the mapping of sedimentary rocks The Mapping Theory of Metaphor The March The March of the Volunteers the marine ecological effects of climate change The MarKeting Mix：Promoting Museums，Galleries ＆ Exhibitions The Markham Report

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