Assertion: mandible's surface | /r/HasAspect | a surface perpendicular
Facets:
value: to the direction
type: LOCATION
Source sentences:
text: For this reason, the bite fork 2 has a receiving surface 21 for receiving the plastic compound, the receiving surface 21 has a surface perpendicular to the direction R, and the bite fork 2 Of the surfaces, and the orthogonal planes of the surfaces are the same in the direction