From Practice and science of standard barbering (c1951) Author: Thorpe, Sidney Coyne from archive.org 電力 電氣 電源 電源插線板
home outline bad electric hazard plug electricity frayed accident shock unsafe electrocution electric-shock Frayed Plug Electric Hazard clip art 磨損 插頭 電動 磨損的插頭電危害剪貼畫