Assertion: cleat's projection | /r/AtLocation | a 90° angle
Facets:
Source sentences:
text: The longitudinal alignment of the projections is such that there are four alignments of projections 6', 7', 14 and 15 but the projections of only two alignments 6' and 7' are at an angle of less than 90° relative to the longitudinal-latitudinal plane (first substantially uniplanar layer 1A') of base 1' while the projections of alignments of projections 14 and 15 are at about a 90° angle to the longitudinal-latitudinal plane (first substantially uniplanar layer 1A') of base 1'.