Matched context for usual and volatile

The page lists matched contexts for usual and volatile.

Share - usual	Share - volatile	Phrase
0.52%	16.49%	{usual or volatile} [time periodicity] fuel
2.80%	2.39%	{usual or volatile} [time periodicity] oil
0.42%	7.05%	{usual or volatile} [time periodicity] component
0.51%	4.20%	{usual or volatile} [time periodicity] material
1.94%	0.62%	{usual or volatile} [time periodicity] system
0.70%	0.86%	{usual or volatile} [time periodicity] fluid
0.13%	0.60%	more [degree] {usual or volatile}