N water present in the crystals of certain compounds. It is chemically combined in stoichiometric amounts, usually by coordinate or hydrogen bonds, but can often be easily expelled 结晶水
Second step , the nanometer tin dioxide powder aspects are gone except the water of crystallization system by the way of hydrothermal.
第二步，利用水热脱水法去除凝胶中的结晶水制得纳米二氧化锡粉体。
If crystallization occurs, use water bath heating to dissolve it, which will not affect the performance of product.
发生结晶时只需用水浴加热溶解，不影响使用效果。
In color like water drops in the crystallization of emotional sigh.
在水珠般的色彩里凝聚着情感的叹息。
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