An infrared instrument needs to be cooled because infrared radiation is emitted by all warm objects.
(An infrared instrument; needs; to be cooled because infrared radiation is emitted by all warm objects) (An infrared instrument; to be cooled; ) (infrared radiation; is emitted; by all warm objects)
An infrared instrument An infrared instrument infrared radiation
needs to be cooled is emitted
to be cooled because infrared radiation is emitted by all warm objects
by all warm objects