Matched context for sweep and recirculate

The page lists matched contexts for sweep and recirculate.

Share - sweep	Share - recirculate	Phrase
7.14%	20.82%	{sweep or recirculate} gas [perform operation]
2.22%	5.14%	{sweep or recirculate} fuel [perform operation]
2.89%	0.23%	{sweep or recirculate} chamber [perform operation]
2.87%	0.23%	{sweep or recirculate} modal will
1.11%	0.34%	not {sweep or recirculate}