英 [ˈsɜːkjələ(r)] 美 [ˈsɜːrkjələr]
adj. 圆形的，环形的；循环的，绕圈的；循环论证的；传阅的
n. （同时送达多人的）印刷品，宣传单
[ 复数 circulars 比较级 more circular 最高级 most circular ][1]
柯林斯英汉双解大词典
circular /ˈsɜːkjʊlə/ CET4 TEM4
1.ADJ Something that is circular is shaped like a circle. 圆形的
2.ADJ A circular journey or route is one in which you go to a place and return by a different route. (旅行或路线) 环行的
3.N-COUNT A circular is an official letter or advertisement that is sent to a large number of people at the same time. 函件; 通告[1]
circular arc 圆弧
circular saw 圆锯
circular motion 圆周运动；圆运动
circular hole 圆孔
circular cylinder [数]圆柱体；圆筒
circular knitting 圆编；圆筒形针织
circular section 圆截面
circular interpolation 环形内插法
circular tube 圆管
circular ring 圆环
circular knitting machine 针织大圆机；圆形针织机；圆编织机