Matched context for preheating and premixing

The page lists matched contexts for preheating and premixing.

Share - preheating	Share - premixing	Phrase
6.58%	40.50%	{preheating or premixing} chamber
6.67%	7.02%	{preheating or premixing} combustion
6.95%	6.65%	{preheating or premixing} zone
5.37%	0.88%	fuel {preheating or premixing}
1.72%	1.17%	{preheating or premixing} tube
2.67%	0.90%	achieve {preheating or premixing} [perform operation]