Only those aspects of {TAIL ~ the second embodiment} which differ in {HEAD ~ structure} from those on the first embodiment will be described in the second embodiment 
Only those aspects of { TAIL ~ the second embodiment } which differ in { HEAD ~ structure } from those on the first embodiment will be described in the second embodiment
OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH