Matched context for obscure and close off

The page lists matched contexts for obscure and close off.

Share - obscure	Share - close off	Phrase
11.79%	6.01%	{obscure or close off} port [perform operation]
26.07%	2.43%	{obscure or close off} line [perform operation]
11.18%	3.18%	valve [does] {obscure or close off}
11.08%	2.26%	{obscure or close off} passage [perform operation]
7.06%	0.63%	{obscure or close off} in position
6.42%	0.28%	not {obscure or close off}