电压测量变压器将电压从300千伏降低到100千伏以保护电路。
A voltage measuring transformer decreases voltage from 330 kV to 100 kV for protective circuit.
安装在住宅屋顶的太阳能光伏系统则与其相反，它让光线直接照射半导体材料以产生动力。
By contrast, photovoltaic solar power systems, mostly used on home rooftops, let light interact directly with semiconductor materials to generate power.
如果大型强子对撞机LHC以7万亿电子伏全力运转，碰撞粒子的能量就相当于你吃0.00013微克糖得到的能量。
If the LHC was operating at its full 7 trillion electron volt capacity, the colliding particles' energy would equal what you'd get from eating 0.00013 micrograms of a candy bar.
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