Circiu奇尔丘circabbr.圆形的(=circular)abbr.循环；流通(=circulation)circling fertilization环施circulating fund quota流动资金定额circulating precooling循环预冷circumscribing polygon外接多边形circumoesophageal ring[医] 食管神经环(寄生虫)circumstellar material星周物质circling cooling water循环冷却水circumstantial element环境成分circumferential branch皮质支circulating pump gland循环水泵压盖