The material selection and airflow measurement of the standard constant flow orifice were described.
同时还对标准恒流孔的材料选择及流量测量进行了论述。
2
Constantorifice differential pressure is the premise for high accuracy hydraulic measuring, so thorough analyse of orifice differential pressure control technology has been taken.
阀口压差的稳定是高精度液动测量的保证，因此深入研究了阀口压差控制技术。
3
The continuous emission process of gas bubbles under a constant gas flow rate through a single orifice immersed in a quiescent viscous liquid is studied.