通过在针状物上施加电压，一个从液体提取离子并加速他们到一个非常高的速度然后强迫它们飞离的电场就被创造出来。

By applying voltage to the needles, an electric field is created that extracts the ions from the liquid, accelerates them at very high speeds and forces them to fly away.

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而被称为“同步向量”的设备能以一秒30次或更快的速度采样电压和电流——向电力公司和系统操作员提供有关电网健康状况的信息更为精确。

Devices called synchrophasors can sample voltage and current 30 times a second or faster-giving utilities and system operators a far more accurate view of the health of the grid.

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例如，IPMI能进行传感器的监测(如温度、风扇速度和电压)，作为问题苗头检测。

For example, IPMI enables the monitoring of sensors (such as temperature, fan speeds and voltages) for proactive problem detection.

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He reasoned then that the charge, since he could vary voltage continuously but got a discontinuous variation in velocity, his conclusion was that the charge must be discontinuously attached to the droplet.

他推断出电荷，因为他可以不断地改变电压,但是得出了速度是在不连续变化着，他的结论是电荷,是间断地依附于液滴上的。

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