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ISO 4491-2:1997 金属粉末用还原法测定氧含量 还原温度和时间 还 …matsec.ustb.edu.cn/matsharing/uploadFiles/powder/jishu2.pdf · ① 所给出的还原时间制作参考。只要在经验证明,某套装置和某种粉末足以保证完成氢损
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