di.chlor.vosn.（名词）A nonpersistent organophosphorous pesticide, C4H 7O 4Cl 2P, of low toxicity to human beings. 二氯松：一种非持久性有机磷杀虫剂，C4H 7O 4Cl 2P，对人的毒性低 来源：di- di-chlor(o)- chlor(o)-v(inyl) v(inyl)(ph)os(phate) (ph)os(phate)
