work mapping table的用法和样例：
例句
- The following table describes the mapping operations that the Character Map transformation supports.
下表说明了字符映射表转换支持的映射操作。 - The current research of this area is summarized in this paper, PDMS is introduced and the characteristics and advantages of data mapping tables are analyzed.
本文概述了该领域的相关工作，简单介绍了对等数据管理系统，分析了数据映射表的概念特征和优点。
