Matched context for duty-controlled and close

The page lists matched contexts for duty-controlled and close.

Share - duty-controlled	Share - close	Phrase
24.99%	8.69%	{duty-controlled or close} valve [perform operation]
19.89%	0.13%	signal [does] {duty-controlled or close}
12.29%	0.13%	manner [manner] {duty-controlled or close}