基本解释缀合柱词组短语短语laced steel column 空腹钢柱laced d column 缀合柱laced column of built channels 槽钢缀合柱concreted -filled steel tubular laced column 钢管混凝土格构柱concrete -filled steel tube laced column 钢管混凝土格构柱专业释义土木建筑工程缀合柱