Apparatus and {HEAD ~ method} for controlling {TAIL ~ an ignition timing} in an internal combustion engine 
for controlling
Apparatus and { HEAD ~ method } for controlling { TAIL ~ an ignition timing } in an internal combustion engine
OTH OTH HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH