hé chéng xǐ dí jì
synthetic detergent
合
hé
variant of 合[he2]
成
chéng
short name for Chengdu 成都[Cheng2 du1]
洗
xǐ
to wash; to bathe
涤
dí
to wash
剂
jì
(bound form) a compound made by mixing ingredients (esp. a medicinal or chemical product)