The major chemical constitutes in essential oil were ester and alcoho.The major chemical compound was butanoic acid ethyl ester((86.89%)).是什么意思_The major chemical constitutes in essential oil were ester and alcoho.The major chemical compound was butanoic acid ethyl ester((86.89%)).在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句