介绍软件驱动开发中经常使用的几个电路概念，比如三态门，高阻-Describes the software-driven development often use the concept of a few circuits, such as the tri-state gate, high resistance, etc.

桥梁模态测量分析程序，用于桥梁一阶、二阶、三阶模态分析-Measurement of the bridge modal analysis program

工业组态软件北京三维力控的一个通讯驱动源代码-Beijing industrial configuration software controlled three-dimensional force of a communication driver source code