So they started experimenting with a crystal that had some erbium in it.

于是他们开始用一种含有的晶体进行实验。

More recently erbium is used as an amplifier of light as it's transmitted down optical fibres.

最近，用作光纤中传输光信号的放大器。

This is designated Ytterby Mine, a historical landmark for the discovery of four periodic elements: yttrium, terbium, erbium, and ytterbium.

定为伊特比矿场，是发四种周期表元素——钇、铽、的历史地标。

Erbium is a rare earth metal, and a crystal with erbium ions in it can work on a wavelength that matches fiber optic cables, but it can only store quantum information for short bursts.

是一种稀土金属，含有离子的晶体可以在与光纤电缆匹配的波长上工作， 但它只能短时间存储量子信息。

Yes it's very important, I had heard about it in lectures but when we videoed our first video about erbium I had completely forgotten about this, although without it nobody would have seen any of our videos.

是的，非常重要， 我之前在讲座中听说过，但在我们拍摄第一段关于的视频时， 我完全忘记了一点，尽管没有它， 没有人会看到我们的任何视频。