Matched context for preheat and pre-heating

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

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