"Someone could attack the industrial control systems that control all the valves, all the distribution systems, and are used to turn on and off various aspects involved with energy and the electrical power grid and oil and gas distribution networks,".

VOA: standard.2009.08.11

These in turn control the hard drive's moving parts.

这些反过来控制硬盘的移动部分。

哈佛公开课 - 计算机科学课程节选

These in turn control the hard drive's moving parts.

这些反过来控制硬盘的移动部分。

哈佛公开课 - 计算机科学课程节选