Research on revaluation of culture and preservation of intangible cultural heritage 并列题名:Research on revaluation of culture and preservation of intangible cultural heritage Research on the legal protection of intangible cultural heritage Research on legal protection of intangible cultural heritage Research on the virtual visualization of intangible cultural heritage Research on the digitization of intangible cultural heritage the collection of creative cases of intangible cultural heritage Empirical research on trademark protection of intangible cultural heritage Reflections on the protection of intangible cultural heritage 并列题名:Reflections on the protection of intangible cultural heritage