security telephone

The Research and Implemention of General Secure Telephone for PSTN;

通用PSTN安全电话的研究与实现

The Research and Implemention of General Secure Telephone for PSTN;

通用PSTN安全电话的研究与实现

railway telephone exchange

铁路专用电话交换机

This car has a built-in compartment for a cellular phone.

这部车装有车内专用电话的内部设备。

A private telephone exchange that automatically connects internal "branch" lines to the external circuits of a telephone system.

一种自动地将内部用户线连接到电话系统外线的专用电话交换机。

Application of Far East Harris's Dedicated Telephone System to Beijing Subway

远东哈里斯专用电话系统在北京地铁的应用

Some cities have special telephone numbers to report a fire or call the police.

有些城市有报警或火警的专用电话号码。

Study on the Organizing Pattern of the Cross-region Coal Communication Network;

跨地区煤炭专用电话交换网组网模式的研究

The white light flashed, signaling a call on Rhy's private line.

白色的灯光闪动着，示意着有人打来了给里斯的专用电话。

Based on the same technology as ARPAnet, the sites were physically linked by special phone lines.

基于与ARPAnet相同的技术，各个站点是通过专用电话线连接起来的。

private telegraph and telephone service

专用电报和电话业务

private automatic telephone exchange

专用自动电话交换机

Provide information, consultation, and prayer support through information hotline.

使用电话专线提供资讯、谘询及代祷。

Each telephone served by a private branch exchange.

由专用小交换机提供服务的电话分机。

New models of telephone are now produced especially for offices. These are some of the ways in which they can be used.

现在生产出专门给办公室用的新型电话，这种电话有以下几种功能。

public telephone kiosk

公用电话, 公用电话室

Clearly, hot lines are no cure for the problem of drug abuse.

显然，连专线电话也无法解决“滥用麻醉品”的问题。

The number of telephone lines connecting the subscriber's terminal equipment to the public switched network and which have a dedicated port in the telephone exchange equipment.

连接用户终端设备和公用交换网并具有一个电话交换设备专用端口的电话线数。

May I use my calling card on this phone?

我能用电话卡在这个电话上打电话吗?

A trademark used for a videophone.

电视电话，可视电话用来表示电视电话的商标