circularityn.循环性；圆；环状circularadj.圆形的；循环的n.传单；通报circular membranes圆薄膜circular striation环状横纹circular vibration圆振动circular histogram圆形直方图circular grid case环网柜circular functions圆函数circular joint box圆形接线盒circular polarized圆极化circular buffering循环缓冲circular inclusion圆形夹杂