Matched context for corona and sparking

The page lists matched contexts for corona and sparking.

Share - corona	Share - sparking	Phrase
9.19%	17.40%	{corona or sparking} plug
52.69%	1.66%	{corona or sparking} discharge
1.52%	2.04%	{corona or sparking} device
1.97%	1.76%	{corona or sparking} electrode
1.79%	1.25%	{corona or sparking} gap
0.56%	0.32%	{corona or sparking} system
0.93%	0.56%	produce {corona or sparking} [perform operation]