铸造材料
气体在金属中溶解和析出的过程
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2020-08-31 15:42
气体在金属中溶解和析出的过程
离问题结束还有
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2020-08-31 15:42
金属的吸气过程 吸附阶段气体分子撞击金属表面某些气体分子离解为原子并吸附.
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