Assertion: telescope's mirror | /r/HasProperty | shaped
Facets:
value: very accurately
type: MANNER
value: specifically
type: MANNER
Source sentences:
text: Catadioptric telescopes are optical telescopes that combine specifically shaped mirrors and lenses to form an image.
text: The mirror will be shaped and polished to a precision of 15 nanometres (15 millionths of a millimetre) over the optical surface.
text: The mirror has to be very accurately shaped.