As you can see in Listing 3, my component tests can now rely on specific data residing in the database during their execution.

正如清单3所示，现在组件测试可在执行期间依赖驻留在数据库中的特定数据。

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In this two-part series, we will demonstrate how we customized and extended the AdvancedDataGrid component provided in the Flex 3 data visualization package.

在这个分为两部分的系列文章中，我们将演示如何定制和扩展在Flex 3数据可视化包中提供的AdvancedDataGrid组件。

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Then 5 main factors affecting urban air quality to principal component analysis identify the most representative of the original data instead of the 2 to 3 factors 5 variables.

并对影响城市空气质量的5个主要因素进行主成分分析，找出最能代表原来数据信息的2至3个因子代替原来的5个变量。

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