cymyln.伞花基CYabbr.历年（=calendar year）cyanocarbonic acid[化] 氰甲酸; 氰代甲酸cyclotomic numbers分圆数cytophagic process细胞吞噬过程cylindricity error圆柱度误差Cytokinin activity细胞分裂素活性Cypripedium flavumn.黄花杓兰cyan color coupler青成色剂cyclotron cataract辐射性白内障Cynanchum giraldiin.峨眉牛皮消cyclohexylbutyrate丁酸环己酯