N always decreases with the increase of nozzle pressure drop or orificediameter.
随着孔径和喷嘴压降的增加，N值总是下降的。
2
This paper introduces the structure, setting principle, orificediameter calculation, selection and installation requirement for safety valve.
介绍了安全阀的结构、设计原则、喉径计算、选用和安装要求。
3
The synthetic jet exhibits self-similarity and is like the conventional jet only at distances greater than 10 times the orificediameter away from the orifice.