bark crushing machine for tannin production — sturdy male worker wearing a shirt and dark trousers feeds several pieces of tree bark into a large mechanical crushing machine with belt drive, while ground tanning bark falls onto the floor - 研磨 幅插畫檔、美工圖案、卡通及圖標
excelsior double mill for grinding cork — heavy industrial machine with twin grinding units, feed hoppers, large flywheels and transmission drive for processing cork - 研磨 幅插畫檔、美工圖案、卡通及圖標
an ancient quern-stone a stone tool for hand-grinding a wide variety of materials - 研磨 幅插畫檔、美工圖案、卡通及圖標
antique illustration, applied mechanics and machines: millstone grinder thinning tool - 研磨 幅插畫檔、美工圖案、卡通及圖標
the grinder, roman sculpture, uffizi gallery, florence, halftone, published 1891 - 研磨 幅插畫檔、美工圖案、卡通及圖標
hollander beater by maschinenfabrik germania in chemnitz — large oval pulp beater with bladed roll, grinding mechanism and belt drive for processing fibers in papermaking - 研磨 幅插畫檔、美工圖案、卡通及圖標
hollander beater room of the new paper mill in strasbourg-robertsau — large factory hall with numerous hollander beaters for processing and refining fiber pulp for papermaking - 研磨 幅插畫檔、美工圖案、卡通及圖標
interior of a sheffield grinding wheel workshop — cutlery workers sharpen blades at wet grindstones in the city’s metal trade - 研磨 幅插畫檔、美工圖案、卡通及圖標
victorian industrial machinery, cone mill with vertical axis of rotation, 1870s, 19th century - 研磨 幅插畫檔、美工圖案、卡通及圖標
consturuction market icons for user experience with construction equipment - 研磨 幅插畫檔、美工圖案、卡通及圖標圖示, 建築業
people rice pounding using large mortar and pestle, madagascar, history 19th century - 研磨 幅插畫檔、美工圖案、卡通及圖標馬達加斯加, 米飯 - 主食
