速度式流量计的频率的计算转化为流量的过程，可用于涡街，涡轮，气体涡轮流量计，该程序已经编译过-the code is for flowmeter to counter the frequent and flowrate

这个文件是速度式流量计的计算方法，介绍了怎么根据流速计算流量。(This document is the calculation method of the speed flowmeter, and introduces how to calculate the flow rate according to the flow rate.)