从焊接行业的重要性出发,分析了研究电焊面罩的必要性,综述了国内外电焊面罩的研究和发展状况,总结了电焊面罩的优点和不足.%From the beginning, this paper describes the welding importance in the manufacturing industry, studies the necessity of the welding mask and analyzes its research and development status and then according to some actual problems, puts for ward the suggestions for development and popularization of auto-changing shade welding mask.
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