22: 00 p.m. Notes for the Library of Hebei Geo University: Readers must wear the school badge or valid documents when entering the library, and consciously accept the security inspection. When borrowing books, you must hold a library card and voucher to borrow them. When leaving the library, the lent books must be returned, otherwise they must be handled according to the regulations; It is forbidden to bring dangerous goods into the library. Please keep quiet after entering the library, turn your mobile phone to mute, take good care of the documents and facilities in the library, report for repair in time if there is any damage, abide by the relevant library regulations, cooperate with the staff management, and be a civilized reader.