borescope

/bawr-skohp, bohr-/US // ˈbɔrˌskoʊp, ˈboʊr- //

内窥镜,内窥器,内镜,孔径显微镜

Definitions

n.名词 noun

1
Optics.
- : an instrument using optical fibers for the visual inspection of narrow cavities, as the bore of a gun.