It operates one of the 15 window and door sensors.

它控制着十五扇窗户和门传感器中的一个

It goes in your foyer.

就在大厅

Not to be confused

不要把这和

Book research?

写小说做的调查

Who said anything about trackers?

我说有追踪器了吗

Well, it's a great idea,

这主意不错

Well, what kind of burn does that?

什么东西会造成那样的灼伤呢

The--the blood vessels were cauterized from the intense heat.

高度的热量把血管都灼烧损坏了

You can't see the beam with the naked eye,

肉眼无法看见那束光

and it shows up nicely.

它就无所遁形了

a single minimum.

拥有单一最小值

that we'll talk about next semester.

这个我们下学期再谈