The electrode substrate has {HEAD ~ the fibers} of {TAIL ~ the base fusion} bonded at a cross point by heat treatment 
of
The electrode substrate has { HEAD ~ the fibers } of { TAIL ~ the base fusion } bonded at a cross point by heat treatment
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH