a plurality of {HEAD ~ columnar crystals} precipitated on {TAIL ~ said base member} so as to extend in proximity to one another form a side of said base member and voids that are formed between adjacent columnar crystals and open to said slide surface to serve as lubricant reservoir means and 
precipitated on
a plurality of { HEAD ~ columnar crystals } precipitated on { TAIL ~ said base member } so as to extend in proximity to one another form a side of said base member and voids that are formed between adjacent columnar crystals and open to said slide surface to serve as lubricant reservoir means and
OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH