Cydian.小卷蛾属CYabbr.历年（=calendar year）Cyrtomium yamamotoin.阔羽贯众Cyclosonis dissitusn.疏羽毛蕨cyanidation proeess氰化法Cynosurus cristatusn.洋狗尾草cytotoxic detection细胞毒理检测cyclotomic sequence割圆序列Cyclosonis clavatusn.棒腺毛蕨Cyanocitta stellerin.暗冠蓝鸦(鸦科)Cynanchum wallichiin.昆明杯冠藤cyclopean aggregate乱石