study travelsafety resilience evaluationentropy weight-normal cloud modelDujiangyan City
研学旅行 安全韧性评估 熵权-正态云模型 都江堰
Research Project of China University of Labor RelationsMajor Project of National Social Science Foundation for Arts国家社会科学基金Humanities and Social Sciences Research Foundation of the Ministry of Education of ChinaGuangdong Province's Key Research Base for Humanities and Social Sciences in Colleges and Universities
24XYJS01720ZD0219BSH15422YJA8800322023WZJD019
2024