Matched context for impervious and impervious

The page lists matched contexts for impervious and impervious.

Share - impervious	Share - impervious	Phrase
61.26%	61.26%	{impervious or impervious} [tightness] diaphragm
23.97%	23.97%	{impervious or impervious} [tightness] material
7.30%	7.30%	{impervious or impervious} [tightness] surface
5.12%	5.12%	{impervious or impervious} [tightness] seal
2.32%	2.32%	substantially {impervious or impervious}