由VB编写的一个实用短信计费系统。主要模块包括（1）计费管理子系统：用户入费；错单处理；用户费率管理；费率管理；用户分析（2）系统维护子系统：管理员登录、管理员管理、数据库设置等（3）计费引擎子系统 -prepared by the VB as a practical SMS billing system. Main modules include (1) Accounting Management Subsystems : user access fees; Wrong processin

This some code from and OMC (Operations and maintenance) of Ericsson switches used in telecommunications. CDR files and other are extracted and report are generated using these java codes. If any microwave-link goes down, this program can be customiz

电子电能表的工作原理，详细介绍电子电能表的各项工作原理和检修-Electronic energy meter works, details of the works and maintenance of the electronic energy meter

思迈电脑维修管理系统10.10版完美授权文件。-Simai computer maintenance management system 10.10 version of the perfect authorization file.