notch board

英 美
  • 梯形槽口板,梯级侧板,梯级搁板,凹槽侧板,凹板
  • board n.木板;布告板;董事会;船舷或机舱;伙食;舞台v.登(飞机、车、船等);接受乘客;有偿提供食宿;搭伙;用木板覆盖
  • notch n.刻痕;等级;切口vt.赢得;刻凹痕;计分
    1. A notched board at either side of a staircase that supports the treads and risers.
      木楼梯侧板,木楼梯小梁在阶梯两边支撑楼梯的踏板和竖板的有凹口的木板