短语词组短語n - alkae 正搆烷烴distribution of n -alkane 正烷烴分佈shorter train n -alkane 短鏈烷烴GC fingerprint of n -Alkane 正搆烷烴氣相色譜指紋法prary alcohol -n-alkane system 伯醇high molecular weight n -alkane 高相對分子質量正烷烴 返回 n-alkane