1、楼梯斜梁
... 支柱 pillar 楼梯斜梁 cut string 背板 backplane/backplate ...
2、木楼梯露明小梁
...通往楼顶的楼梯 a staircase that mounts to the toof a building木楼梯露明小梁 cut string不出面的委托人 undisclosed principal ...
Chinese Cut String Functions中文截字符串函数
Cut off the string断了的弦
cut-and-mitred-string[木] 斜梁隅角槽
four-point vertical string of cut-off四点垂直弦截法