Oligo ethylene glycol diglycidyl ether was prepared from oligo ethylene glycol and epichlorohydrin in the presence of NaOH by PTC.是什么意思_Oligo ethylene glycol diglycidyl ether was prepared from oligo ethylene glycol and epichlorohydrin in the presence of NaOH by PTC.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句