An RDL file begins with a series of import statements, used to declare the EMF packages that will be involved in the transformation.

RDL文件以一系列导入陈述开始，它们被用来声明转换中涉及的EMF包。

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Select add to add the SAMPLE.dbm (created in Part 1 of this series) as the EMF data instance, as shown in Figure 2.

选择add添加sample . dbm(在本系列的第1部分中已创建)作为EMF数据实例，如图2所示。

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