Birefringence measurements using overlapping of interference fringes;
晶体双折射测量的干涉条纹重迭法
In view of the limitation of signal dotting and phonetic communication device used for coal mine,a kind of flameproof signal dotting and phonetic carrier-current communication device especially suited to satisfy the current needs of modernization mine production with high-capacity and high-efficiency is designed,its effects and performance has been validated.
针对目前煤矿使用信号打点、语音通讯装置存在的缺陷,设计出一种能适应当前高产、高效现代化矿井生产需要的煤矿隔爆型信号打点、语音载波通讯装置,其功效和性能已得到验证。
I heard nothing from him.
他没有音讯了。(我没有得到他的音讯了。)
I apologize for my long silence.
我为久无音讯而道歉。
"You hear from her?"
“你还和她通音讯吗?
digital audio Broadcasting
数字音频广播,[港]数码音频广播,数字音讯广播
We have not hear from him since he go abroad.
他出国以来我们没有听到他的音讯。
I haven't heard from Andrew for weeks.
我已有几个星期没有安德鲁的音讯了。
I haven't heard from my hometown for years.
几年来我没有听到过家乡的音讯。
Sensaura had to devise a set of overlapping signals that cancels out the cancellations.
神音于是设计了一组叠覆消音讯号，用以消除先前的消音波。
Voice communications are restricted to value-added voice services.
话音通讯只限于增值话音服务。
The radio consisting of five tubes can receive various signals.
(由)管(成的)音机能接收各种讯号.
convert(broadcast signals) into sounds or pictures
将（无线电讯号）转变为声音或图像
The radio squeaked five.
收音机里嘟嘟地发出五点钟报时讯号。
Radio is an important means of communication.
收音机是重要的通讯工具。
"radio, television and communications equipment and apparatus"
收音机、电视机及通讯设备与器材
Design of Underwater Acoustic Digital Voice Communication System Based on OFDM;
基于OFDM的水声数字语音通讯系统设计
Research and Design of the P2P Audio and Video Communication System;
P2P音视频通讯系统的研究与实现
The Survey on Synchronous Audio and Video Recordings for the Whole Process of Interrogation;
侦查讯问全程同步录音录像问题研究
A Novel Overlay Routing Scheme for Peer-to-Peer Computing
基于P2P-SIP的语音组通讯机制研究