hammer-beam roof[建] 托臂梁屋顶
hammer-beam木拱脚悬臂托梁
hammer r beam悬臂托梁;远尾梁
hammer beam truss悬臂托梁桁架
hammer beam roof台柱被悬臂托梁顶棚
N（名词） either of a pair of short horizontal beams that project from opposite walls to support arched braces and struts 锤柄