Valve timing {HEAD ~ control apparatuses} for {TAIL ~ an engine} according to a first and second embodiments of the present invention will now be described 
for
Valve timing { HEAD ~ control apparatuses } for { TAIL ~ an engine } according to a first and second embodiments of the present invention will now be described
OTH OTH 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 OTH