2. Basic (adult) borrowing function: this function is enabled when readers register. Books, periodicals and audio-visual materials (except children's literature) in Chinese and foreign languages can be borrowed *** 15 volumes, of which no more than 3 volumes are foreign books and no more than 3 volumes are foreign periodicals. (first swipe your ID card or social security card in front of the machine, then scan the barcode of the book and borrow the book successfully. There is also volunteer service in front of the borrowing machine. )