A hard carbon film coated substrate includes in {TAIL ~ stacked sequence} a substrate, an intermediate layer, and {HEAD ~ a hard carbon film} 
in
A hard carbon film coated substrate includes in { TAIL ~ stacked sequence } a substrate , an intermediate layer , and { HEAD ~ a hard carbon film }
OTH OTH OTH OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD