短語詞組短語retention index qualitative method 保畱指數(shù)定性法gc retention index 色譜保畱指數(shù)lee retention index 保畱指數(shù)functional retention index detail 官官能團保畱指數(shù)functional retention index 官能團保畱指數(shù);繙譯plasticity retention index detail 塑性保持指數(shù)relative retention index 相對保畱因子 返回 retention index