cypip乙胺嗪CYabbr.历年（=calendar year）Cyclotella stylorumn.柱状小环藻Cyclobalanopsis huin.雷公青冈cyclophorase system循环酶系Cytologic fundament细胞学基础Cyclotella miyiensisn.米易小环藻cymose inflorescence(拉florescentia cymose)头状聚伞花序Cytarabine oefosfate阿糖胞苷十八烷基磷酸钠cyclodextrin complex环糊精包合物Cyrtophora lacunarisn.刻纹云斑蛛Cyrtomium uniserialen.单行贯众