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- Design scheme for multi-channel digital telephone system 多通道数字电话的设计方案
- One Digital Telephone System without a Switching Center 无交换中心数字电话系统的设计
- The telephone system has broken down. 电话系统失灵了。
- I'm trying to get the hang of the new telephone system. 我正在练习掌握新型的电话机的用法。
- We had a new telephone system installed last week. 上周我们安装了一套新的电话系统。
- We have a new telephone system install last week. 上周我们安装了一套新的电话系统。
- Setting up telephone system in the EDP range. 其中文意义为:在电子数据处理范围中设置电话系统。
- Our hotel telephone system has IDD service. 饭店的电话系统有国际长途直拨功能。
- The German telephone system is highly efficient. 德国的电话系统效率很高。
- We have to pay in advance to have the new telephone system install. 装新电话系统我们必须预先付款。
- Need to relocate the Telephone System to another location? 需将整套电话系统迁往新地址?
- The telephone system has broken down for several days. 电话系统已经瘫痪好几天了。
- In America the telephone system is run by private corporations. 美国的电话网络由私人电话公司经营。
- digital telephone system 数字电话系统
- ICV systems which link computers and digital telephone lines are becoming popular because they are relatively inexpensive yet effective. ICV系统可以把电脑和数字电话线连起来，相对而言由于这个系统物美价廉，因而普及较快。
- It started with hacking telephone systems. 真正的黑客行为是从入侵电话系统开始的。
- PSTN (local telephone system)/VSAT circuits for voice and e-mail capability. PSTN（当地电话系统）/ 语音和电子邮件的小型卫星地面站（VSAT）电路功能。
- The article discussed how to upgrade the communication networks of CATV system and telephone system to support multimedia information service system, and introduced hybrid fiber coax and asymmetric digital subscriber line access technology. 讨论了如何将现有的有线电视传输网络以及电话通讯网络升级，以适合多媒体信息服务系统技术的需要，同时也介绍了光纤电缆混合网和非对称数字用户线等适合于多媒体信息服务系统的接入技术。
- digital telephone transmitting system 数字电话传输系统
- The cocoa-tin telephone system is another proof of the way in which solids transmit sounds. 用可可罐头盒做的电话装置是固体传导声音这一方式的另一个证明。
