基本解释康拉特遜殘碳值词组短语短語Conradson carbon residue test 康拉遜殘碳試騐;康拉遜殘炭測定CCR Conradson carbon residue 康氏殘炭Conradson carbon residue更多词组专业释义能源科學技術康拉特遜殘碳值