Assertion: endoscope | /r/HasAspect | a diameter of 8 mm
Facets:
value: preferably
type: DEGREE
Source sentences:
text: In a 1:100 scale, the eye level of a pedestrian in a model is at 16 mm (0.63 in) and this level can be precisely maintained with an endoscope, which preferably has a diameter of 8 mm (0.31 in).