Matched context for close and stem

The page lists matched contexts for close and stem.

Share - close	Share - stem	Phrase
26.07%	15.32%	valve {close or stem}
7.42%	0.62%	exhaust [physical/chemical] {close or stem}
5.68%	0.69%	intake {close or stem}
2.23%	0.90%	poppet {close or stem}
3.56%	0.49%	inlet {close or stem}
0.89%	0.19%	{close or stem} [does] prevent
1.51%	0.56%	control {close or stem}