An internationally recognized distress signal via radiotelephone ( from the French m'aider). 国际公认的无线电话呼救信号。
Power plant for mobile radio apparatus maritime mobile radiotelephone equipment 移动式无线电机用电源水上移动无线电话设备
Americans can communicate quickly with people in other countries by cable, radiotelegraph radiotelephone. 美国人可以利用海底电报、无线电报、用户电报及无线电话和他国人民通讯,迅速便捷。
Maritime mobile radiotelephone equipment 水上移动无线电话设备
In a small electronic device such as a radiotelephone, a traditional balun is impractical because of the physical constraints. 在无线电话机之类的小型电子装置中,因物理尺寸的限制使传统的平衡-不平衡变换器不实用。
It developed transoceanic radiotelephone links and telephone cable systems and created the Telstar satellite communications system. 它发展了跨洋无线电电话联系和电话缆线系统,并开创了通讯卫星系统。
A hand-held mobile radiotelephone for use in an area divided into small sections ( cells), each with its own short-range transmitter/ receiver. 一种用于条块分割区域的手持无线电话,每一个都有自己的短距发射机或接收机。
Thisaircraft, nicknamed the Sacred Cow, included a sleeping area, radiotelephone, and retractable elevator for Roosevelt's wheelchair. 这架飞机,绰号圣牛,包括睡眠区,无线电电话,和可伸缩的电梯罗斯福的轮椅。
However, the TA found that the average duration per call of Public Mobile Radiotelephone Services ( PMRS) and Personal Communication Services ( PCS) had increased. 但是电讯管理局发现公共移动无线电话服务(PMRS)和个人通讯服务(PCS)的平均通讯时间却延长了。
A Movable Radiotelephone Enters into the Small-sized Switchboard 移动通信进入小交换机
This paper introduces the design the basic operating principle of a movable radiotelephone entered into the small-switchboard. 本文介绍了移动通信进入单位小交换机的设计指导思想和基本工作原理。
Adaptive Array Signal Processing and Adaptive Radiotelephone 自适应阵信号处理与自适应无线电话机