With the merits of high hardness, high thermal conduction, negative electron affinity, diamond is deemed one of the preferred materials of the field emission cathode.

金刚石因具有高硬度、高热导率、负电子亲和势等优点而成为场发射阴极的首选材料之一。

youdao

So do you think noble gases would have a high positive electron affinity, a low positive, or negative electron affinity?

那么，你认为稀有气体的电子亲和能，应该是一个高的正值，一个低的正值，还是一个负值？

youdao

So do you think noble gases would have a high positive electron affinity, a low positive, or negative electron affinity?

那么，你认为稀有气体的电子亲和能，应该是一个高的正值，一个低的正值，还是一个负值？

youdao