Both laboratories use similar approaches: smashing particles called hadrons into each other.

将称作强子的高能粒子彼此对撞。

Classrooms, libraries, and (laboratories) used to be the only spaces where students spent their school hours.

" 教室、图书馆和（实验室）曾经是学生们在学校里唯一能去的几个地方。

At the moment they tend to be quite high but that's because they're done in laboratories using a lot of electricity.

目前它们往往很高，但那是因为它们是在使用大量电力的实验室中完成的。