The exterior housing, which includes major faces and intersection seams, has {HEAD ~ at least two female slots} that project inward at {TAIL ~ an angle} that is non orthogonal to the major faces or intersection seams 
project inward at
The exterior housing , which includes major faces and intersection seams , has { HEAD ~ at least two female slots } that project inward at { TAIL ~ an angle } that is non orthogonal to the major faces or intersection seams
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH