You can register your one-card on the library page of Jiaotong University's homepage, and then you can choose to reserve the books you want by logging in. Or isn't there a computer in the lobby on the second floor of the library? You can directly enter the book you want on the computer and click on the reservation ~

As for how to get the books, you should check the borrowing situation of the books you reserved. If the book is not lent out, the library will keep it for you for 5 days. Just borrow books from the library.