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Describe a test to find out which of the powders is calcium carbonate.
描述怎样鉴定哪种粉末是碳酸钙。
youdao
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The hammer is encrusted with calcium carbonate, which can happen quickly.
锤子被碳酸钙包覆，是可能迅速发生的。
youdao
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The hammer is encrusted with calcium carbonate, which can happen quickly.
锤子被碳酸钙包覆，是可能迅速发生的。
youdao