Matched context for arc-gap and coil

The page lists matched contexts for arc-gap and coil.

Share - arc-gap	Share - coil	Phrase
12.35%	13.37%	ignition {arc-gap or coil}
12.03%	0.25%	spark {arc-gap or coil}
6.37%	0.41%	have {arc-gap or coil} [perform operation]
7.91%	0.15%	least [degree] {arc-gap or coil}