A driving mechanism first turns the first lever section, and thereafter turns {HEAD ~ the second lever section}, thereby pushing out {TAIL ~ a disc} from the disc accommodation section 
pushing out
A driving mechanism first turns the first lever section , and thereafter turns { HEAD ~ the second lever section } , thereby pushing out { TAIL ~ a disc } from the disc accommodation section
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH