eth.i.onn.(名词)A highly toxic, liquid organophosphate pesticide, C9H 22O 4P 2S 3. 乙硫磷:一种剧毒的液态有机磷酸酯杀虫剂,分子式为C9H 22O 4P 2S 3 来源:eth(yl) eth(yl)(th)ion- (th)ion-