Matched context for electrostatic and piezoelectric

The page lists matched contexts for electrostatic and piezoelectric.

Share - electrostatic	Share - piezoelectric	Phrase
1.25%	3.57%	{electrostatic or piezoelectric} [physical/chemical] sensor
3.89%	0.37%	{electrostatic or piezoelectric} [physical/chemical] injector
2.13%	0.67%	{electrostatic or piezoelectric} [physical/chemical] means
1.18%	0.18%	{electrostatic or piezoelectric} [physical/chemical] system