Fluorine, one of the necessary trace elements of human beings is presented in the forms of inorganic and organic compounds in foods, such as sodium fluoride, silicon fluoride, and fluoroacetate etc.
氟是人体必需的微量元素之一,通常以各种多元

或有
形式存在。

化合物Fluorine, one of the necessary trace elements of human beings is presented in the forms of inorganic and organic compounds in foods, such as sodium fluoride, silicon fluoride, and fluoroacetate etc.
氟是人体必需的微量元素之一,通常以各种多元

或有
形式存在。
A series of reversible thermochromic paints were prepared using different kinds of inorganic compounds as filler,cresol red as chromophoric reagent and boric acid as delomorphic reagent.
以甲酚红为发色
,硼酸为显色
,选择不同的
填
,制备出系列可逆热致变色颜
。
Some derive their carbon from inorganic sources, and their hydrogen from hydrogen sulfider or other inorganic compounds, while other bacteria may be photosynthetic or saprobic.

细菌从
原
中获取碳源,从硫化氢或其他
化合物中获取氢,而另一
细菌则是光能合成的或腐生的。
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