orifice

孔, 口英释中释none of the holes in your body, such as your mouth, nose etc

1 orifice plate,孔板；挡板；节磷板；量孔板

2 orifice discharge,锐孔流量；锐孔流出

3 orifice meter,孔板流量计；孔板量计

4 orifice size,喷嘴直径；节流面积

1 various bodily orifices.人体上的各种孔洞