清单10中的脚本用来监视磁盘空间，您可以设置警告(warninglimit)和紧急情况(lowlimit)限制，以及进行检查的文件系统的列表。

The script in Listing 10 monitors disk space, and you can set the warning (warninglimit) and emergency (lowlimit) limits, as well as the list of file systems that are checked.

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诺斯罗普·格鲁曼公司已经获得了美国空军第一阶段价值3000万美元的合同，以研发全球空间监视地面雷达系统。

Northrop Grumman Corporation has been awarded the first phase of a ＄30 million firm-fixed price U.S. Air Force contract to develop a global space surveillance ground radar system.

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发射和测试系统包括空间飞行的地面系统任务的监视，导航，飞行操作和分析，指挥和控制，通信和气象资产。

The Launch and Test Range System includes ground-based surveillance, navigation, flight operations and analysis, command and control, communications and weather assets for space missions.

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