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Hopefully they are now protected from further oxidation by the argon atmosphere inside the ampoule.
希望他们现在免遭进一步氧化,在充满氩气气氛安瓿内存.
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Research on Furnace Brazing of Diamond Grinding Wheel with Ni-Cr Alloy under Argon Atmosphere
Ni-Cr合金Ar气保护炉中钎焊金刚石砂轮的研究
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