The holes are covered by the wrap of the other scroll member for {HEAD ~ the majority} of {TAIL ~ the operational cycle} of the scroll compressor 
of
The holes are covered by the wrap of the other scroll member for { HEAD ~ the majority } of { TAIL ~ the operational cycle } of the scroll compressor
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH