Matched context for pedal-actuated and double-acting

The page lists matched contexts for pedal-actuated and double-acting.

Share - pedal-actuated	Share - double-acting	Phrase
23.34%	28.80%	{pedal-actuated or double-acting} cylinder
6.95%	12.09%	{pedal-actuated or double-acting} piston
5.55%	11.59%	{pedal-actuated or double-acting} unit
7.93%	3.78%	{pedal-actuated or double-acting} valve