Circon.奇尔科circabbr.圆形的(=circular)abbr.循环；流通(=circulation)circumambulationn.绕行circling surface旋转面circulus senilis(角膜)老年环circumnavigationn.世界一周旅行；周游世界circulating load循环量,循环负荷circulatory pool循环池circulating rate循环速率circumoral crown围口冠(动)circulating door旋转门circulatory flow环流