特别的是，规格必须需要元数据来提供上下文，换句话说就是当收集元数据时，如何来收集以及如何来改变数值。

Metrics in particular need metadata to provide context, in other words, when it was collected, how it was collection, how it changes value.

youdao

要这样做，拷贝一个现有的报告显示入口然后改变数值以符合你的需要。

To do this, copy an existing report manifest entry and change the values to suit your needs. For example.

youdao

一个临界变数是路径的数值， 你以回声$路径指令能在指令行检查。

One critical variable is the value of PATH, which you can check at the command line with the echo $PATH command.

youdao