Matched context for pre-heating and preheat

The page lists matched contexts for pre-heating and preheat.

Share - pre-heating	Share - preheat	Phrase
25.94%	17.03%	{pre-heating or preheat} air [perform operation]
40.29%	10.94%	{pre-heating or preheat} fuel [perform operation]
33.75%	0.47%	provide for {pre-heating or preheat}