The electromechanical gauge ACTS as an ammeter because the gauge reading changes with variations in the sender unit resistance.

机电仪表示一种电表，因为仪表读数在传感元件电阻中变化多样。

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The PG's gauge display indicates the current operating pressure relative to the overall range of the unit.

就地压力计显示出当前相对于整个单位而言的工作压力。

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Connect the vacuum pump to the compound pressure gauge; open the compound pressure gauge and vacuum pump to vacuum the indoor unit and connecting pipe.

将真空泵连于复合压力表，打开复合压力表和真空泵对室内机和连接管抽真空。

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Now this is a rain gauge, and it's sitting on a roof of a building, and when the water falls into this gauge, it sends a signal to the logic unit of the computer, which immediately notifies the memory bank of the computer to seek out its instructions for a rainy day.

这是一个雨量测量器，安装在一个楼房的,屋顶上，当水流入到这个测量器，它就给计算机的逻辑部件发送一个信号，计算机立即通知内存条,为下雨天找出相应的指令。

哈佛公开课 - 计算机科学课程节选