We should make a qualitative analysis to the problem.

我们应对问题进行定性分析。

Qualitative analysis goes together with quantitative analysis.

定性分析和定量分析相结合。

Research approach: Qualitative analysis and standardize of analysis.

研究方法为定性分析法，规范分析。

The method of combining quantitative analysis with qualitative analysis.

三是定性分析和定量分析相结合的方法。

Qualitative analysis shows that water is made up of hydrogen and oxygen.

定性分析表明水是由氢氧结合而成的。