| 1. | The technicians are coming to fix the telephone switchboard 技师们马上就来修理电话交换机。 |
| 2. | Coastal mobile telephone switching system 船舶电话交换机 |
| 3. | Private automatic branch exchange 专用自动电话交换机 |
| 4. | Local telephone switching system 市内电话交换机 |
| 5. | Digital telephone exchange txd 数字电话交换机 |
| 6. | Analog telephone exchange atx 模拟电话交换机 |
| 7. | Unit automatic exchange 内部自动电话交换机 |
| 8. | Common battery exchange 共电制电话交换机局 |
| 9. | In 2004 , the capacity of telephone exchanges includes local telephone exchanges 2004年固定电话交换机容量含小灵通交换机。 |
| 10. | Small branch exchange 小型电话交换机 |