And they play on fears that America is in danger of losing its pre-eminence in high-budget " big science" , following the closure earlier this year of the Illinois-based Tevatron, the second-most-powerful particle accelerator in the world.

随着今年早些时候，世界上第二给力的粒子加速器，伊利诺斯州的一万亿电子伏加速器的关闭，他们担忧美国正面临着失它在以高预算为支撑的尖端科技领域领先地位的威胁。

The Tevatron works with protons and antiprotons.

而兆电子伏加速器使用的是质子和反质子。

And so, electron accelerators are actually standard equipment in most hospitals.

因此，电子加速器实际上是大多数医院的标准设备。

So I'm at DESY, which is the National Accelerator Lab, and obviously the majority of people here are working on radiofrequency accelerators.

所以我正在德国电子同步加速器研究所（DESY），这里是国家加速器实验室，显然这里的大多数人都在研究射频加速器。