| 1. | Alteration of power supply system in program - control
程控交换机电源系统改造 |
| 2. | Supervise telecom exchanger & desk phone installation
监督程控交换机和桌上电话的安装 |
| 3. | Discussing about pbx management and maintenance
程控交换机的管理和维护 |
| 4. | Design and realization of the small digital program controlled exchange
小型数字程控交换机的设计与实现 |
| 5. | A single chip l296 power supply designed for using in small program controlled switchboard
296在矿用小型程控交换机电源中的应用 |
| 6. | Digital switchs are playing an extremely importantrole in voice communication
数字程控交换机在语音通信中有着极其重要的作用。 |
| 7. | Resolution for ground connection and power supply problem of programme - controled exchange
程控交换机接地与供电电源问题及其解决措施 |
| 8. | Implementation of an interface agent in the field of emulator of space - flight track
开发程控交换机多媒体仿真训练系统的支撑软件环境 |
| 9. | Building 2 million ports digital program - controlled telephone switching systems for beijing telecom bureau
共200万数字程控交换机的安装开通项目管理。 |
| 10. | Digital program - controlled telephone switching system project ( 6 , 000 lines and trunks ) pingyao telecom bureau , shanxi province
陕西电信西安小寨局20000门程控交换机开通工程。 |
