大部分书目将在两星期内过期，且有时会员必须删除档案，这样下一个在虚拟队伍中等待的顾客才能取得阅读许可。
Most titles expire after two weeks, though in some cases members are asked to delete the file, so the license can be transferred to the next patron waiting in a virtual line.
系统功能包括：添加新书、删除旧书、借书、还书、书目查询和读者信息的模糊查询。
The system's functions consist of add new book, delete old book, borrow book, return book, book catalog searching and fuzzy reader searching, etc.
管理部分包括管理首页、书籍和书目的添加与删除、订单管理、用户资料管理。
Managers' part includes manager's homepage, addition and deletion pages of book, order management, customers' data management.
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