VB 自己编程实现对机械的应用，里面有8个软件，分别是关于工况系数、轴的直径、轴承、选V带类型、图形变换、凸轮质量的软件-VB programming to realize the application of mechanical, there are eight software, respectively is about the working condition of coefficient, shaft diameter, bearing, choose V belt type, g