Cylon司伦牌手表CYabbr.历年（=calendar year）Cyclobalanopsis multinervisn.多脉青冈cytogenetic characteristics细胞遗传学特征Cypraea mauritiana Linnaeusn.龟甲宝螺(宝螺超科；宝螺科)Cymatophoropsis trimaculatan.三斑蕊夜蛾cyclohexylammonium chloride氯化环己铵cyclopentenylundecylic acid环戊烯十一(烷)酸, 副大风子酸Cyclotella pseudostelligeran.假具星小环藻Cymatium rubeculum Linnaeusn.艳红美法螺(鹑螺超科；法螺科)Cyclohexanone monooxygenase环己酮单加氧酶cyclohexane dehydrogenation环己烷脱氢