Matched context for double-acting and pressure-regulating

The page lists matched contexts for double-acting and pressure-regulating.

Share - double-acting	Share - pressure-regulating	Phrase
12.09%	33.88%	{double-acting or pressure-regulating} piston
3.78%	48.52%	{double-acting or pressure-regulating} valve
2.35%	14.00%	{double-acting or pressure-regulating} means