P3R1E1I1G2N1I1T1I1O1N1S1
15 points
PREIGNITIONS is validvalid
PREIGNITION, [n]
PREIGNITION, ignition in an internal combustion engine while the inlet valve is open or before compression is completed [n]
PREIGNITION, [n]
PREIGNITION, ignition in an internal combustion engine while the inlet valve is open or before compression is completed [n]