a shaving horse (shave horse, or shaving bench) is a combination of vice and workbench, used for lead pipes - 鋅 幅插畫檔、美工圖案、卡通及圖標
19th century bunsen element electrochemical cell diagram with zinc and carbon electrodes in acidic solution - 鋅 幅插畫檔、美工圖案、卡通及圖標
19th century daniell cell electrochemical battery diagram with zinc and copper electrodes in sulfuric acid solution - 鋅 幅插畫檔、美工圖案、卡通及圖標
metallurgy. the art of extracting metals from their ores, and adapting them to various purposes of manufacture - 鋅 幅插畫檔、美工圖案、卡通及圖標
copper furnace. the art of extracting metals from their ores, and adapting them to various purposes of manufacture - 鋅 幅插畫檔、美工圖案、卡通及圖標
