As with the first embodiment 10, it includes {HEAD ~ a laminated structure} of {TAIL ~ several layers}, each of which layers is formed with a rather uniform and precise thickness 
As with the first embodiment 10 , it includes { HEAD ~ a laminated structure } of { TAIL ~ several layers } , each of which layers is formed with a rather uniform and precise thickness
OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH