石油中间馏分中异构烷烃的分子识别刘颖荣;蒋婧婕;刘泽龙;田松柏【摘 要】The identification of isoparaffin components in petroleum middle fractions including kerone and diel fuels was investigated by gas chromatography-mass spectrome
Atoms,Elemen ts and Ionsatom 原子elemen t 元素ion 离子四六级分数线anion阴离子cation阳离子electr on 电子neutra l 中性的proton质子atomic nucleu s 原子核nucleo n 核子nuclid e symbol核素符号nuclid e 核素isotop e 同位素alphapart