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气体渗氮技术
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气体渗氮技术
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工学
热处理技术
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gas nitriding technology
气体渗氮技术
在特定温度的渗氮气氛中长时间保温,使得氮原子渗入金属表面,以改变其成分、组织及结构,从而实现工件表面力学性能改善的工艺。
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Art Newspaper of China
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art nouveau
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