This paper presents the significance and method of correcting the sharpness of standardorifice plate and gives some suggests for carrying out this work.
本文介绍了标准孔板尖锐度修正的意义及修正的方法，并对实施这一工作提出了新的建议。
2
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。
3
Then, its measurement principle and theoretical formula, as well as the structural style and technical requirements of standardorifice were expounded.