polypropylene glycolWiktionary 原文构词拆分polypropylene词根/词干+glycol词根/词干词源说明From polypropylene + glycol. From poly-+propylene. From propyl+-ene. From prop(ane)+-yl.释义（英文）名词 Noun(organic chemistry) A polymer of propylene glycol.词族派生词（1）PPG相关词（6）polypropylene oxidepolypropylenepropylenepropylglycolpropylene oxide