swing orifice valve 转盘节流孔阀
variable orifice valve 可变节流阀
pressure compensating orifice valve 压力补偿孔口阀
advanced orifice valve 高级孔板阀
VOV Variable Orifice Valve 变孔径阀
orifice control valve 孔板节流阀 ; 锐孔调节阀
orifice check valve 小孔止回阀 ; 量孔节流单向阀 ; 小孔单向节流活动 ; 小孔单向阀
They can produce a "ball valve" effect by intermittently occluding the atrioventricular valve orifice.
他们可以产生“球阀”效应，引起房室瓣口间歇性关闭。
A type of quick-opening valve whose orifice is opened and closed by a disk that pivots on a shaft in the throat of the valve.
一种快开式阀门，其孔口的开启和关闭靠装在阀门颈部枢轴上的圆盘。
This problem becomes more critical if the valve is equipped with a restrictive flow orifice.
如果阀门配备有限制流速孔，这个问题就变得更加关键。
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