求翻译：整体立式圆锥形结构、采用锥形封头，侧边锚式搅拌、机架、三层结构. 内表面抛光处理(粗糙度Ra是什么意思？

Overall vertical conical structure, the conical head, side anchored mixing, rack, three-tier structure. Polished inner surface (roughness ra, <0.4μm); within the tank welding round flanging process arc transition smooth and easy to clean corners, beautiful appearance; round a closed container

Overall vertical cone shaped structure, with conical seal head, side anchor-blender, rack, 3 storey structure, surface finish (roughness Ra <0.4 µm), the tank welding is a flip side arc transition process smooth, easy-to-clean, no dead ends beautifully; round closed container

The whole vertical cone structure, uses the cone-shape shell cover, the side anchor type agitation, the rack, three structures. Internal surface polishing processing (roughness Ra<0.4μm); In the shell of tank welding place uses the flange craft circular arc transition, smooth easy to clean does n

Overall vertical cone-shaped structure, with cone-shaped head, anchor stirring, the side bays, three-tier structure. Polishing the surface (roughness Ra<0.4 μ m), tank welding arc transition using the flanging process, smooth, easy to clean, no dead ends, beautiful appearance; the circle closed c

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