drilled down

Add a Method builder call to navigate back to the parent folder after the user has drilled down into the folder structure.

添加一个Method构建块调用，以便在用户深入到文件夹结构以后向后导航到父文件夹。

But when he had drilled down about 70 feet (21 meters), Drake struck oil.

但当瑞克往下钻至70英尺（21米）之时候，他发现了石油。

In this instance, you can see I drilled down from the database level to show SQL activity.

在这个实例中，您可以看到我从数据库级向下展开，以显示SQL活动。

The oil workers drilled down another 10 feet to find oil.

在地下打洞石油工人为了开采石油又往下钻了10英尺。

You used netstat and drilled down to the packet level using tracing tools, such as iptrace and tcpdump.

在本文中，您使用了netstat，并且使用iptrace和tcpdump等跟踪工具深入到了数据包级别。