Data migration, that is migrating data from one data environment to another environment, is often did during application software and data base development.
在应用软件及数据库开发中经常要做数据迁移工作，数据迁移就是将数据从一种数据环境移入另一种数据环境中。
For this scenario, it can be useful to export the base data types directly from the logical model as a starting point for XML development.
对于这个场景，可以直接从逻辑模型中导出基本数据类型，作为XML开发的起点。
This paper analyzes the intelligence contactor base on the development prospect, and illustrates the importance of data communication ability in the contactor monitoring combine with filed bus.
本文在分析智能接触器发展前景的基础上，结合现场总线说明数据通讯能力对于接触器监控的重要性。
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