求翻译：图书管理系统是典型的信息管理系统。图书管理工作繁琐，借阅频繁，包含大量的信息数据。因此就需要一个完善的图书管理系统来实现对这些数据的有效管理。本系统的主要任务就是对图书、读者、借阅信息、查询进行统一的管理，满足用户的需求。本系统包含6个功能模块：系统设置、读者管理、图书管理、图书借还、系统查询和口令更改。是什么意思？

Library management system is a typical information management system. Tedious work of library management, borrowing frequently contain large amounts of information and data. Hence the need for a complete library management system to achieve effective management of these data. The main task of this s

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