Experimental report 1, experimental purpose and requirements, 2, experimental equipment (environment) and requirements, that is, experimental materials, drugs and requirements for the environment, such as clean and tidy environment, airtight or anaerobic or aerobic, and so on. 3. Experimental steps, that is, specific operation steps; 4. The experimental results are final figures or verification results; 5. Discuss and analyze the principle of the experiment, why we get such a result, and the problems that should be paid attention to in the experiment.