| 1. | 24 - key display speakerphone 12 - key standard phone 24 -键显示屏免提对讲电话 |
| 2. | Toshiba dk - t 3000 series telephones also available in white color 14键特大显示屏免提对讲电话 |
| 3. | Key display phone 10 - key standard phone 10键显示屏免提对讲电话 |
| 4. | 14 - key large display phone 20键显示屏免提对讲电话 |
| 5. | 0 - key display phone 10键显示屏免提对讲电话 |
| 6. | Talk back telephone 对讲电话 |
| 7. | Tcs multifunctional digital desktop intercom station is used in armtel system dcn and is also compatible with dcp mdk central exchange units Tcs数字台式对讲电话多功能数字台式对讲机主要用于armtel的dcn系统。 |
| 8. | Presently the telephone communication system used in the factories is the intelligent non - central - switching amplifying call and telephone talk system . the bus topological structure and the multi - channels sharing are adopted 目前,在工厂通信中主要使用的通信系统是一种采用总线型拓扑结构的智能型无主机扩音对讲电话系统。 |
| 9. | The intelligent non - central - switching explosion - proof amplifying call and telephone talk system has many advantages such as low cost but high utilization factor of the channels , fast communication , convenience for using and maintaining and so on . it can replace with the same ty 智能型无主机防爆扩音对讲电话系统具有绳路成本低且利用率高,通信联系快速,使用及维护简便等优点,可替代国内外的同类产品,具有广泛的应用前景和使用价值。 |
| 10. | In this paper , the intelligent non - central - switching explosion - proof amplifying call and telephone talk system which is suitable for the inflammable and explosive , large - scaled and strong - noised working space is developed by recurring to the techniques of the computer , the electronics and the communication 本文采用计算机技术、电子技术和通信技术研制了适合于易燃、易爆、大范围、强噪声的生产场所使用的智能型无主机防爆扩音对讲电话系统。 |