Principle, application and development trend of dry ice cleaning hub fixture Dayang Ren, Changzhong Wu, Qiuqi Sun, Shengqiang Wang, Jiaxin Tian and Chengyu Wang E3S Web Conf., 385 (2023) 04023 Published online: 04 May 2023 DOI: 10.1051/e3sconf/202338504023