{HEAD ~ Preferably, the depth “DG}” of {TAIL ~ the race} is equal to or greater than the length of the lip of the largest cap to be opened 
of
{ HEAD ~ Preferably , the depth “ DG } ” of { TAIL ~ the race } is equal to or greater than the length of the lip of the largest cap to be opened
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH