The Tevatron works with protons and antiprotons.

而兆电子伏使用的是质子和反质子。

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

因此，电子实际上是大多数医的标准设备。

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，伊利的一万亿电子伏的关闭，他们担忧美国正面临着失去它在以高预算为支撑的尖端科技领域领先地位的威胁。