The self-service lending and returning machine in the library of University of Science and Technology Liaoning can borrow at most 12 books at the same time, because the self-service lending and returning machine in the library of University of Science and Technology Liaoning needs to swipe your mobile phone card before it can operate. After displaying your information, click Borrow, and at least one book and at most 12 books can be borrowed at the same time. The loan period is 30 days, and the lease can be renewed halfway. If it is overdue, a certain handling fee will be charged.