这对于电子扬声器或小型LED灯已经足够，但还不足以支持笔记本运行。笔记本一般需要30到50瓦的功率。

This would be enough to power an electronic speaker or small LED (light-emitting diode) lights, but not enough to operate a laptop, which requires an estimated 30 to 50 watts.

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整个产业都指望着LED照明技术，它也几乎是唯一用于显示器的电子管技术：几乎找不到一个白炽灯或者排列混乱的荧光灯。

The industry is banking on LED lighting as the way forward, and it’s virtually the only bulb technology on display: There is barely a single incandescent or sickly compact fluorescent to be seen.

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在普通的电灯玻璃管内，ESL灯通过向内置的荧光粉发射电子而发光。

The ESL bulbs generate light by firing electrons to stimulate phosphor, and the whole setup is encased in normal light-bulb glass.

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So if we think about the work function for zinc, and the work function for zinc is 6.9 times 10 to the -19 joules, do we expect that when we shine our UV light on the zinc, we'll be able to eject electrons?

如果我们考虑锌的功函数,它是6，9乘以10的-19次方焦耳，我们是否可以预测当,用紫外灯照射锌时，我们可以射出电子呢？

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