orifice

noun

1. an aperture or hole that opens into a bodily cavity

e.g. the orifice into the aorta from the lower left chamber of the heart

Synonym: openingporta

1. （尤指身体上的）口，孔，洞
An orifice is an opening or hole, especially one in your body such as your mouth.

e.g. After a massive heart attack, he was strapped to a bed, with tubes in every orifice.
经历了一次严重的心脏病发作之后，他被绑在床上，全身都插着导管。

1. 孔, 口：对于节流孔口(Orifice)来说,可将流量公式写成下列形式7.1.2影响流量稳定性(Flow Stability)的因素(3)阻塞(Backup)对流量稳定性的影响

2. 孔板：包括有空气,二氧化碳等气体物质,其主要来源有:所谓堵塞,即蒸汽袪水器的排放流孔板(Orifice)无法开启,因此,无法排放凝结水及其他气体.可能引起堵塞的原因有:(2)阀与阀基座(Valve Seat)间塞有外物当袪水器在正常操作时,

3. 节流孔：都会使桥规值发生改变而影响缓冲装置的正常状态,因此拆检时要测量启阀活塞桥规值. 桥规值过大,关阀时可能出现敲击,桥规值过小,可能使阀不能完全关闭. 此时要通过更换缓冲装置的垫块(Disc)来调整. 2、清洁吹通放气节流孔(Orifice)及通道A.