Matched context for surfactant and dithiophosphate

The page lists matched contexts for surfactant and dithiophosphate.

Share - surfactant	Share - dithiophosphate	Phrase
5.68%	2.82%	{surfactant or dithiophosphate} [attribute] useful
3.73%	1.85%	useful [effectiveness] {surfactant or dithiophosphate}
0.41%	0.32%	include {surfactant or dithiophosphate} [perform operation]
0.57%	0.41%	use {surfactant or dithiophosphate} [perform operation]