Matched context for exposure and impingement

The page lists matched contexts for exposure and impingement.

Share - exposure	Share - impingement	Phrase
11.50%	6.78%	direct [shape] {exposure or impingement}
1.30%	14.25%	{exposure or impingement} surface
4.55%	1.04%	prevent {exposure or impingement} [perform operation]
2.33%	1.39%	{exposure or impingement} [does] cause
0.92%	3.49%	fuel {exposure or impingement}
1.12%	2.58%	{exposure or impingement} section
1.92%	1.23%	avoid {exposure or impingement} [perform operation]