特殊用法angle stringer1.角形桁条, 角形纵梁bilge stringer1.船底长桁heavy-section stringer1.大截面桁条, 粗桁条roof stringers1.【采矿】纵护顶背板slag stringer1.长条夹渣support stringer1.(葡萄园)栅篱架设机top hat-section stringer1.管形截面桁条