这些初级注入加速器（feeder accelerators ）不能直接（将质子束）注入LHC，因其管道被引导质子的铁磁体所密闭包围（译者注：一般都是用交变的电磁场加速质子）。

These feeder accelerators cannot inject straight into the LHC because their pipes are enclosed in bulky magnets that steer the protons.

youdao

这些初级注入加速器（feeder accelerators ）不能直接（将质子束）注入LHC，因其管道被引导质子的铁磁体所密闭包围（译者注：一般都是用交变的电磁场加速质子）。

These feeder accelerators cannot inject straight into the LHC because their pipes are enclosed in bulky magnets that steer the protons.

youdao