Matched context for cleanliness and smoothness

The page lists matched contexts for cleanliness and smoothness.

Share - cleanliness	Share - smoothness	Phrase
31.67%	9.70%	engine {cleanliness or smoothness}
13.68%	9.52%	improve {cleanliness or smoothness} [perform operation]
16.69%	2.15%	maintain {cleanliness or smoothness} [perform operation]
5.47%	2.00%	high [size] {cleanliness or smoothness}