使用电脑的离线式多路电话计费软件。一个计费板插在电脑的PCI扩展槽上，多路电话线接入，实施计费。-use computers offline multi-way telephone billing software. Billing a plate inserted in a computer PCI expansion slot, multi-line access, billing implementation.

基于短消息的移动通信场强信号检测管理软件,软件基于PC,用于与嵌入式信号接收板通信-based on SMS mobile communications market strong signal detection management software, PC-based software. for the signal and the receiver plate embedded communications

对平行平板波导的传播模式进行模拟，可以自行修改参数。-Parallel plate waveguide propagation mode simulation, you can modify the parameters.