cyalen.周期CYabbr.历年（=calendar year）Cyclosonis euphlebiusn.河池毛蕨cyclopropanaphthalenen.环丙烷萘cyano-sulfanilamide[医] 氰[氨苯]磺[酰]胺Cytotoxicity in vitro体外细胞毒作用cyclonic gas scrubber[化] 旋流式除尘器Cynanchum limprichtiin.康定白前Cyclamate sulfamidase环己烷氨基磺酸酶, 环己烷氨基磺酸硫酰胺酶cy and Electric Power水利电力部Cyclosonis hirtisorusn.毛囊毛蕨Cyruuwhum auriculatum白首乌