circsabbr.事情；形势；情况(=circumstances)circabbr.圆形的(=circular)abbr.循环；流通(=circulation)circulating valve循环阀circlip for shaft轴用弹性挡圈circulus Willisii[医] 大脑动脉环circulating stock循环油料circulating store循环存储器circumoral pallor环口苍白区,口周苍白circulating ratio循环倍率,冷却倍率circumflex artery旋动脉circulative virus循环性病毒circumcirculationn.环绕冲洗；冲刷四周