词汇	valve check
释义	valve check 单向阀；此回阀
随便看	self centering chuck self-centering chuck self centering entry guide self-centering entry guide self-centering internal measuring instrument self-centering lathing self centering mandrel self-centering mandrel self centering punch self-centering punch selfcentering roller bearing self-centering rotor self-centering screen self centering seal self-centering shaker self-centering shank self-centering steering selfcentred self centred self-centred Self-centred activity self-centred attitude self-centred,-centered selfcentredly self-centredly