... resistance alloy-powder 电阻合金粉 alloy silver powder 银合金粉 dental alloy powder 补齿合金粉末 ...
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Silver alloy powder 银合金粉末
alloy y silver powder 银合金粉
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The leached out residue is reduced by sodium carbonate, then the gdd-silver alloy is decomposed by nitric acid, and finally zinc powder is used to replace silver.
浸出渣用碳酸钠还原，再用硝酸分解金银合金，然后用锌粉置换银。
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