N - octylic acid - N - (quinazolin - 4 - ketone) methyl ester is a sulphur - free and phosphorus - free additive.是什么意思_N - octylic acid - N - (quinazolin - 4 - ketone) methyl ester is a sulphur - free and phosphorus - free additive.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句