distress telex calls

Distress Radio Call System

遇险无线电呼叫系统

marine calling and distress radio telephony frequency

海上呼叫和遇险无线电话频率

distress frequency

无线电频率遇险呼救频率

Digital Selective Calling [Global Maritime Distress and Safety System]

数字选择性呼叫〔全球海上遇险和安全系统〕

Design of Wireless Calling System Based on ZigBee

基于ZigBee的无线呼叫系统的设计与实现

Design of a Wireless Calling System Based on ZigBee Technology

基于ZigBee技术的无线呼叫系统设计

An international radiotelephone signal word used by aircraft and ships in distress.

呼救信号遇险的飞机、船只等使用的国际无线电呼救信号

Global maritime distress and safety system(GMDSS)--Technical requirement for marine telecommunication equipment

GB15304-1994全球海上遇险安全系统(GMDSS)船用无线电通信设备技术要求

ASIC Design of 433MHz-RFID System Based on MCU89C51;

基于89C51的433MHz-RFID无线呼叫系统的ASIC设计与实现

A Wireless Service System Based on Wireless Sensor Network

一种基于无线传感网的呼叫服务系统设计

Wireless Emergency Call System of Rest Home Based on ZigBee

基于ZigBee技术的养老院无线紧急呼叫系统

I'll use my car radio to call for help.

我现在就用车上无线电呼叫求援。

The wireless calls were soon responded to.

对无线电的呼叫不久有了回答。

emergency position indicator radio beacon

应急无线电示位浮标(船舶遇险沉没时

Use a gateway to call telephones and videoconferencing systems

使用网关呼叫电话和电视会议系统

The Design of YAEP Co. s Call Center;

95598电力客户呼叫中心系统设计研究

Ham radio call sign on-line, indexed by call, name; and address.

无线电爱好者的电台呼叫信号一般是以呼号、姓名和地址来索引的。

international radio call sign

《国际无线电呼号》