Impure drinking water is a cause of disease.
不洁饮用水是引发疾病
一个原因。
Impure drinking water is a cause of disease.
不洁饮用水是引发疾病
一个原因。
An impure oxide of cobalt, used to produce a blue color in enamel and in the making of smalt.
浅绿蓝色颜料,主要由
氧
物组成。
The technological condition of Potassium Sulfate production from impure glaserite and impure Potassium chloride, is discussed in the paper,It is proved by experiment.
文章介绍了利用电解质溶液理论计算不纯钾芒硝与不纯
氯
钾转
制取硫酸钾
工艺条件,并通过试验加以验证。
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