PTC element as over-current limiter for program-controlled telephone exchanger is one of the important application of PTC ceramic material.
程控电话交换机过电流保护元件要求用低电阻率高性能的PTC陶瓷材料来制备。
High performance PTC ceramic material with low resistivity is desired to prepare an over-current limiter for program-controlled telephone exchanger.
程控电话交换机过电流保护元件要求用低电阻率高性能的PT C陶瓷材料来制备。
This article is proposed to develop a new type of digit programme-controlled telephone switching board which is based upon the CAN bus to replace the old automatic telephone switchboard.
本文提出研制新型的基于CAN总线的数字程控交换机替换原有的全电子式自动电话交换机。
An intelligent telephone system controlled by SCM chip STC89C54RD is introduced, whose functions includes "blacklist", "please don" t bother in fixed time "and fire alarm."
设计一种基于STC89C 54rd单片机控制的智能电话系统，该系统在普通电话机的基础上，增加了黑名单、定时请勿打扰以及火警报警等功能。
The long distance communication in the system is finished by using public telephone network and the MODEM techniques controlled by at orders.
该系统中的远程数据通信通过公共电话网络，使用由at命令集控制的MODEM调制解调技术来完成。
Postal and telecommunications to achieve the program-controlled exchange, digital transmission will take the lead in the province completed the first telephone counties.
邮电通讯实现了交换程控化，传输数字化，并率先在全省建成了第一个电话县。
An intelligent telephone system controlled by SCM chip STC89C54RD is introduced, whose functions includes' blacklist ', 'please don' t bother in fixed time 'and fire alarm.
设计一种基于STC89C 54rd单片机控制的智能电话系统，该系统在普通电话机的基础上，增加了黑名单、定时请勿打扰以及火警报警等功能。
The telephone network based on circuit-switching and digital program controlled exchanging technology plays an important role in the whole communicating networks.
以电路交换和数字程控交换技术为基础的电话网更是在整个通信网中占据着重要的地位。
A new channel controlled mode for the cordless telephone (cyclic unfixed channel assignment with a half channels) is proposed.
提出一种新的无绳电话信道控制方式：二分之一信道组循环不定位方式。
This paper analyses all factors that influence the telephone connection of program-controlled customer exchangers and puts forward measures for raising the telephone connection rate.
分析了影响程控用户交换机电话接通率的各种因素，并结合实际情况指出提高电话接通率的具体措施。
If a document is distributed to an alien place the receiving unit shall send back return receipt for controlled documents and information notice or inform the dispatching unit over telephone in time.
异地发放文件时接收单位应按要求将《受控文件、资料通知单回执》寄回或及时电话通知发文单位。
Learning how growth is controlled can improve the understanding of cancer and other diseases caused by growth gone awry, Ostrander said in a telephone interview.
Ostrander在一次电话采访中说，对生长是如何得以控制所进行的研究有助于对癌症及其它由生长异常导致的疾病的了解。
Every station of the system can call to controlled room and other telephone station and can select every channel. There are six channel in every station and no interfere or noisy within the channel.
系统内的任一话站均能与控制室或其他话站呼叫通话，每个话站均有选择任一通话通道的权利，系统内每个话站有六个通道，通道间没有干扰或串音。
The telephone is used with the explosion-proof coupling of HOB-1 and connect to program controlled switch to form explosion-proof communication system.
话机与关联设备HOB-1型防爆耦合器配套， ● 户内、户外 与交换机连接，组成防爆电话通讯系统。
The telephone is used with the explosion-proof coupling of HOB-1 and connect to program controlled switch to form explosion-proof communication system.
话机与关联设备HOB-1型防爆耦合器配套， ● 户内、户外 与交换机连接，组成防爆电话通讯系统。
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