DIC_2_3.15.2.3.1 支架、豎板、板(frames, boards)[br/]
DIC_2_3.15.2.3.2 底座、卯眼(base, stand, socket, mortise)[br/]
DIC_2_3.15.2.3.3 豎桿、榫頭、橫檔(upright beam, tenon, crosspiece, rung)[br/]