Matched context for venting and shutoff

The page lists matched contexts for venting and shutoff.

Share - venting	Share - shutoff	Phrase
7.53%	48.13%	{venting or shutoff} valve
1.37%	5.60%	{venting or shutoff} position
2.80%	2.38%	{venting or shutoff} means
2.17%	2.59%	{venting or shutoff} mechanism
1.61%	1.28%	{venting or shutoff} line
2.74%	0.54%	{venting or shutoff} arrangement
1.73%	0.77%	{venting or shutoff} function
2.81%	0.57%	{venting or shutoff} system