| 释义 |
〔nonpersistent〕a nonpersistent pesticide; a nonpersistent infection.非持久性杀虫剂；非持久性传染病〔diquat〕A strong, nonpersistent, yellow, crystalline herbicide, C12H 12Br 2N 2, used to control water weeds. 杀草快：一种强力非持久性、黄色、晶状除草剂C12H 12Br 2N 2，用于控制水生杂草 〔dichlorvos〕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 |