Matched context for necessity and differential

The page lists matched contexts for necessity and differential.

Share - necessity	Share - differential	Phrase
22.91%	1.34%	eliminate {necessity or differential} [perform operation]
0.49%	29.25%	pressure {necessity or differential}
4.15%	0.60%	{necessity or differential} [does] provide
3.16%	0.48%	not {necessity or differential}
0.89%	0.74%	reduce {necessity or differential} [perform operation]