短语词组短语Column &Base 支柱及大理石底座column n base 柱基rounded column -base plate 圆形柱脚底板detail of mega column -base 巨柱柱脚节点grillage column base 格排柱基;格排柱座Steel pipe column base 钢管柱基础column base joint 柱脚节点 返回 column base