Two-step procedure is preferable to prepare high molecular weight poly(olefin-ester)s with a high polar monomer content and a high melting temperature.是什么意思_Two-step procedure is preferable to prepare high molecular weight poly(olefin-ester)s with a high polar monomer content and a high melting temperature.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句