例句與造句

1. On 14 May 1976 Fermilab took its protons all the way to 500 GeV . This achievement provided the opportunity to introduce a new energy scale, the teraelectronvolt ( TeV ), equal to 1000 GeV . On 17 June of that year, the European Super Proton Synchrotron accelerator ( SPS ) had achieved an initial circulating proton beam ( with no accelerating radio-frequency power ) of only 400 GeV.
2. It's difficult to find proton synchrotron accelerator in a sentence. 用proton synchrotron accelerator造句挺難的