Matched context for header and vent

The page lists matched contexts for header and vent.

Share - header	Share - vent	Phrase
19.64%	3.59%	{header or vent} pipe
2.04%	3.39%	{header or vent} opening
5.00%	1.03%	exhaust [physical/chemical] {header or vent}
1.24%	3.05%	{header or vent} conduit
1.71%	1.94%	air {header or vent}
5.03%	0.49%	exhaust [physical/chemical] {header or vent}
3.56%	0.41%	inlet {header or vent}
3.26%	0.32%	outlet {header or vent}
0.91%	0.12%	{header or vent} area
0.50%	0.76%	{header or vent} assembly
0.61%	0.61%	{header or vent} chamber
0.39%	0.15%	{header or vent} end
1.89%	0.17%	{header or vent} inlet
0.46%	0.09%	{header or vent} portion
2.66%	0.12%	{header or vent} [connection] connect
0.62%	0.42%	{header or vent} [does] connect
0.48%	0.26%	{header or vent} [does] extend
0.36%	0.17%	{header or vent} [does] have
1.46%	0.21%	connect {header or vent} [perform operation]
0.46%	0.28%	form {header or vent} [perform operation]
0.81%	0.22%	fuel {header or vent}
0.73%	0.12%	gas {header or vent}
0.38%	0.49%	have {header or vent} [perform operation]
0.34%	0.38%	include {header or vent} [perform operation]
0.63%	0.27%	vapor {header or vent}