此时的困难在于将数据转换成公共格式，这样服务器抽取操作数据时不会误解或错误对齐数据。

The difficulty at this point lies in putting the data into a common format so the server can extract the operation data without misinterpreting or misaligning the data.

youdao

项目最困难的部分 — 从三个源抽取数据并组合成典型工具可以使用的格式 — 现在已经完成，其实并不是很难。

The most difficult part of the project—pulling data from three sources and combining it into a format that typical tools can use—is now finished, and it wasn't so difficult.

youdao

事实上，基于ooxml和odf的系统都使用压缩的xml格式，这意味着可以直接与数据交互以及从这两个系统抽取可重用的MathML表达式。

However, the fact that both OOXML and ODF based systems use zipped XML formats means that it is possible to directly interact with the data and extract reusable MathML expressions from either system.

youdao