The reason is "comparative advantage", this phrase in itself implies a profound theoretical core, which contains two elements: First, "more" to compare all the difference, and is unique, it is two or two The object of the above in a comparison of levels.
基于1个网页-相关网页
As mentioned in section "Introduction into the Two-Phase-Commit protocol" an XA transaction contains two elements which define the transaction.
正如“两阶段提交协议简介”小节中提到的，XA事务包含定义该事务的两个元素。
In this case, the root element is filesystem, which contains two path elements.
在本例中，根元素是filesystem，它包含两个path元素。
Listing 6 shows the output of the XSLT, which contains two levels of section elements.
清单6展示了XSLT的输出，其中包含两级section元素。
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