目的研究杀扑磷原药的急性和亚慢性毒性及致突变性，求出最大无作用剂量。

To study the acute and subchronic toxicity and mutagenicity of methidathion and find out its NEL.

youdao

目的研究杀扑磷原药的急性和亚慢性毒性及致突变性，求出最大无作用剂量。

To study the acute and subchronic toxicity and mutagenicity of methidathion and find out its NEL.

youdao