Poly(vinyl alcohol)/nano-zinc oxide composite was prepared by melting extrusion in order to improve the performances of poly(vinyl alcohol)(PVA).是什么意思_Poly(vinyl alcohol)/nano-zinc oxide composite was prepared by melting extrusion in order to improve the performances of poly(vinyl alcohol)(PVA).在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句