Survey method is the most widely used research method in the process of paper writing. Investigation method is mainly a way for users to systematically collect the current situation or historical situation of research topics and comprehensively analyze the research results.

2. Observation method

Observation, as the name implies, is a way for users to directly observe the research object and record the data content with the help of their own senses and some other auxiliary tools, so as to obtain research papers and topics. Many large scientific research institutions use this method to carry out research projects.

3. Experimental method

I believe that the experimental method can only be understood by users who have been exposed to chemistry courses. Experimental method is one of the methods used to discover the relationship between research objects by controlling all aspects of the research objects.

4. Literary methods

Literature method is a method to obtain research data by continuously collecting relevant literature materials of this topic and making a systematic and comprehensive analysis, but users must know that the selected papers and literature materials must be comprehensive, so as to comprehensively analyze the research results.