The test is invalid if the monitor solution is not comparable with the reference solution.
2
通过控制溶液的浓度和环境的相对湿度，得到了不同结构的有序多孔薄膜。
By controlling the relative humidity in the atmosphere and concentration of the conducting polymer respectively, different morphology of the honeycomb structure can be obtained.
3
本文从原理和应用两个方面，讨论了配位滴定中选择和控制溶液酸度的重要性和复杂性。
In this paper, the importance and complexity of the selection and control of the solution acidity in coordination titration was discussed through the principle and the application.
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