The amount of data that is involved in a cleansing solution is usually large, so such an exercise is undertaken typically during data warehouse projects, and is best used during an ETL operation.

清洁解决方案涉及的数据量通常很大，因此，清洁处理通常在数据仓库项目中进行，且最好用于ETL操作过程中。

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With the start of Chinese large-scale operation of infrastructure projects, projects construction will require a lot of money.

随着我国大规模基础设施项目的开工运作，工程项目建设将需要大量的资金。

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