The Izod notched impact strength of PMMA modified by ACR increased by 42.42% when the ACR mass fraction was 5%.是什么意思_The Izod notched impact strength of PMMA modified by ACR increased by 42.42% when the ACR mass fraction was 5%.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句