有机磷毒剂

yǒu jī lín dú jì

organophosphorus agent

有

yǒu

to have; there is

机

jī

(bound form) machine; mechanism

磷

lín

variant of 磷[lin2]

毒

dú

poison

剂

jì

(bound form) a compound made by mixing ingredients (esp. a medicinal or chemical product)