circular column meaning in English

环形柱
圆柱体

Analysis of the rotation angle in measuring mass center of circular column
圆柱体质心测量中转角取值分析
Introduction of the load carrying capacity of circular column made of concrete filled steel tube
圆形钢管混凝土柱承载力计算综述
Research of the problem of intersecting line in orthogonal intersection of circular column and sphere by analytic method
用解析法求解圆柱与球体正交相贯线问题
This paper includes three parts of research : ( 1 ) cyclic loading tests of sixteen interior joints with rectangualr columns and four joint subassemblages with circular columns
本论文进行了以下三方面的研究工作：进行了8组共16个矩形柱中间层中节点和4个圆柱节点组合体的低周反复加载试验。