The significance of the topic selection of the opening report lies in explaining and expounding the importance of the research topic, which can explain the necessity and practical significance of the research. When writing the meaning of the topic, we can start from the following aspects: 1. Academic significance: explain the value of the topic in the academic field, whether it fills the gap in the research field, whether it promotes the progress of the discipline, and whether it involves research hotspots and frontier issues. 2. Practical significance: explain how this topic can help solve practical problems, whether it can provide practical application value, and whether it can provide reference or improvement programs for related industries or fields. 3. Social significance: explain whether the positive impact of this topic on social development, economic development and environmental protection will help improve social problems or social welfare. 4. Personal significance: explain the importance of this topic to personal academic development, whether it helps to improve personal professional quality and research ability, and whether it can support personal future career development.