Study on water saving strategy of students' dormitory in Chifeng University Yuchen Yang, Yaxin Zhang, Qian Wang, Xiaowei Li, Ying Shuai, Zixuan Han, Qiang Li and Kunpeng Zhang E3S Web Conf., 233 (2021) 01067 Published online: 27 January 2021 DOI: 10.1051/e3sconf/202123301067