Unlike straightforward extract and load operations, transformation is the most complicated piece, as there is a need to understand, convert, aggregate, and calculate data.

与直接的提取和加载操作不同，转换是最复杂的部分。因为在此过程中需要对数据进行理解、转换、聚集和计算。

youdao

The tutorial shows how to extract data from a database and store it without changes in XML format, while my article shows how to convert the data into something printable and human readable.

该教程演示如何从数据库抽取数据并不加更改地以 XML 格式存储，而我的文章则演示了如何将数据转换成可打印以及可读的格式。

youdao

Seagrass beds are believed to rival rice paddies in their photosynthetic productivity or the ability to extract greenhouse gas CO2 and convert it into oxygen and stored carbon matter.

种植大米的土地能高效得进行光合作用—吸收温室气体二氧化碳，将其转化为氧气，并储存碳元素，海草的生长地同样如此。

youdao

In such cases, always extract meaningful compensation from these Pilot customers to offset your costs and to increase the likelihood that the Pilot user will convert to a paying customer.

FORBES: How To Gain The 'Traction' A VC Cannot Ignore