The ZnO and Cu product can be obtained through ammino complexation and method of substitution.
研究采用氨络合转换方法,制备了医用或化妆品活性氧化锌等产品。
By giving examples, it is explained how to specify initial representative in the method of substitution.
通过实例说明了如何选定代入构成法的起始表达式。
Because they have same convergence region, sum of series and combinational twin identifies was obtained using the method of substitution.
它们有相同的收敛区间,应用代入法求出它们的级数和,从而获得孪生组合恒等式。
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