这是计算限流孔板程序的VB源码，供想提升程序功能的同行们利用。-this is the original VB code for restriction orifice calculation.

工业上流量测量在很多场合都会遇到，用这个软件可以计算限流孔板，付费软件(Industrial flow measurement will be encountered on many occasions. This software can be used to calculate the limit flow plate and pay software.)