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阐述圆管流（液流或气流）点速流量计的设计原理，通过精度分析选定测量点⒚应用实验资料进行回归分析，导出圆管流断面平均速度与最大速度的换算公式，为点速流量计的设计、生产及实际计算提供依据⒚
The design principle of circular flow (liquid flow or air flow) point velocity flowmeter is elaborated. Through the analysis of selected measurement points by the precision analysis, the experimental data are used for regression analysis. The formula for calculating the average velocity and the maximum velocity of the circular tube flow section is deduced. Flowmeter design, production and provide the basis for actual calculation ⒚