| 1. | A . b . strowger invents the telephone switch , dial telephone 史端乔发明自动电话交换系统。 |
| 2. | Requirements for pabxs access to public telephone switching network 自动用户交换机进网要求 |
| 3. | Methods of test for toll manual telephone switching equipment 长途人工电话交换设备.测试方法 |
| 4. | Telephone switching and ancillary system 电话转换及辅助系统 |
| 5. | Coastal mobile telephone switching system 船舶电话交换机 |
| 6. | Mtsc mobile telephone switching center 移动电话交换中心 |
| 7. | Nab mobile telephone switching center 移动电话交换中心 |
| 8. | Automatic telephone switching system 自动电话交换系统 |
| 9. | Code for design of railway spc digital telephone switching engineering 铁路时分数字程控电话交换工程设计规范 |
| 10. | As for the ibm 801 , it never did become a telephone switcher 就ibm 801而言,它从来都没有成为一个电话转换器。 |