Matched context for obturate and shut off

The page lists matched contexts for obturate and shut off.

Share - obturate	Share - shut off	Phrase
26.46%	2.39%	{obturate or shut off} passage [perform operation]
28.14%	1.34%	{obturate or shut off} port [perform operation]
24.53%	0.23%	member [does] {obturate or shut off}