其他材料类：比较有金属四边做成的那种都是为了美观性加强。
Other materials: to compare the four sides made of metal that are intended to enhance the aesthetics.
低成本的焊道，与其他焊接过程相比，填充金属的数量相对比较少。
The quantity of filler metal being often much lower than with other welding processes.
通过分析比较阐述了电弧成形与其他金属成形方法相比所具有的优势。
Compared with other rapid shaping methods, the advantage of the technology was presented.
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