2. Relevant theories and methods: Introduce theories and methods related to conservation laws, such as Lagrangian mechanics, Hamiltonian mechanics, energy conservation law, momentum conservation law, etc.
3. Research progress: introduce the existing research progress, including the research status, main achievements and existing problems in related fields at home and abroad.
4. Research plan: Make your own research plan according to the existing research progress. Clarify the research objectives, contents and methods, and list specific experimental or simulation schemes.
5. Expected results and significance: explain the expected research results and their significance in theory and application.