circumpref.围绕 ... 的； 在 ... 周围的abbr.圆周； 周围（=circumference）circabbr.圆形的(=circular)abbr.循环；流通(=circulation)circulatory polygraph循环系统多导记录仪circumferential field周向磁场circulating crosstalk循环串话circulative economics循环经济circulatory disorders循环障碍Circuferential cooler环冷机circumferential fiber纤维鞘circumacetabular fold围腹吸盘褶(动)circulant determinant循环行列式circumferential clasp环形卡环