Matched context for propagation and instability

The page lists matched contexts for propagation and instability.

Share - propagation	Share - instability	Phrase
30.32%	2.99%	flame [color] {propagation or instability}
0.80%	10.42%	combustion {propagation or instability}
2.50%	2.19%	prevent {propagation or instability} [perform operation]
0.36%	2.44%	{propagation or instability} [does] cause
0.36%	2.07%	{propagation or instability} [does] occur
0.29%	1.23%	pressure {propagation or instability}
0.33%	2.85%	reduce {propagation or instability} [perform operation]