Matched context for bubble and purge

The page lists matched contexts for bubble and purge.

Share - bubble	Share - purge	Phrase
26.23%	9.87%	{bubble or purge} vapor [perform operation]
18.40%	2.26%	{bubble or purge} air [perform operation]
10.48%	3.07%	{bubble or purge} gas [perform operation]
15.31%	0.87%	air [does] {bubble or purge}