Matched context for regeneration and switchover

The page lists matched contexts for regeneration and switchover.

Share - regeneration	Share - switchover	Phrase
2.77%	44.57%	{regeneration or switchover} valve
2.07%	10.01%	{regeneration or switchover} means
2.62%	1.79%	{regeneration or switchover} system
1.83%	1.94%	perform {regeneration or switchover} [perform operation]
0.80%	3.32%	effect {regeneration or switchover} [perform operation]