This machine, which collides packets of high-speed protons (examples of a type of subatomic particle called a hadron) was switched on again on July 5th, after a three-and-a-half-year upgrade, for what is known as " Run 3" .

这台碰撞高速质子包（ 一种称为强子的亚原子粒子的例子） 的机器在三年半的升级后于 7 月 5 日再次启动，所谓的“ 运行 3" 。