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thermo-chemical treatment
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thermo-chemical treatment
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工学
化学热处理
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thermo-chemical treatment
化学热处理
把金属材料或工件放在适当的活性介质中加热、保持,使一种或几种化学元素渗入其表层,以改变其化学成分、组织和性能的热处理工艺。
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euryhaline animal
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