查询词典 radio-frequency

Based on the statistics and analysis of test data from a GSM-R pilot project on Jinan-Qingdao line,the metrics of radio coverage at different distances between BTS s and different heights of BTS antenna was derived and a reliable,economical and applicable radio coverage scheme was concluded primarily.

基于对胶济线GSM-R工程示范段测试数据的统计和分析，得出在不同基站间距、不同天线高度条件下的无线覆盖指标，初步得到可靠且经济适用的覆盖方案。

Antenna for radio wave transmitter or receiver with a metal device (such as strokes, lines or line order) in the radio equipment used to launch or receive electromagnetic components.

在无线电设备中用来发射或接收电磁波的部件。

In has made respective analysis after the radio network planning and the optimized flow, summarizes between the network planning and the optimized relations, had expounded the radio network optimization is the planning work nature continues, is a long-enduring work which circulates unceasingly.

在对无线网络的规划及优化的流程做了各自分析后，总结网络规划和优化之间的关系，阐明了无线网络优化是网络规划工作的自然延续，是一个不断循环的持续性工作。

Using the new, highly-advanced Soldier Radio Waveform to uniquely format information, the Manpack HMS radio successfully has transmitted voice, video, data and messages to 25 nodes simulating soldiers operating within a single network.

背负式HMS无线电已经成功的向25个模拟士兵节点传输了话音、视频、数据以及文电。

Radio-frequencyfrequency of electromagnetic waves used in radio and TV transmission,between 10kilocycles per second and 3000000 megacycles per second

射频，无线电频率(无线电传递和电视发送所用电磁波的频率，其范围从每秒10千周到3000000兆周之间)。

Several unusual properties make this object particular interesting:(1) ultra-luminous near and far infrared (L〓≈10〓L〓, and L〓≈10〓 L〓) emission,(2) very strong optical Fe Ⅱ emission (R〓≈4.35),(3) apparently blueshifted optical Fe Ⅱ multiplets (several hundred km/s),(4) the strongest radio emission among radio-FIR selected NLS1's and extreme Fe Ⅱ emitters,(5) composite Balmer lines with both narrow and broad components (the latter blueshifted by about 1000 km s〓).

我们发现2MASS0153+260为首例超强光学FeⅡ线射电类星体，具有如下极为有趣特征：(1)远红外和近红外光度非常高，L〓≈10〓 L〓且L〓≈10〓 L〓；(2)光学FeⅡ线发射特别强，R4570≈4.35；(3)光学FeⅡ线相对于禁线和氢Balmer线窄成分有明显蓝移，Δυ～4×10〓kms〓；(4)在射电-远红外选NLS1和超强光学FeⅡ线AGN中射电辐射最强；(5)具有复杂的Balmer发射线轮廓，宽成分相对于窄成分和禁线有～1000km s〓的蓝移。

She can be heard on her weekly radio show on Wave 89.1 radio station,"Renditions of the Soul".

她可以听到她的每周电台节目波89.1广播电台，&心灵的译丛&。

A variety of useful convenience items are available on SLE and SLT models, including a touch-screen navigation radio, power-operated sunroof, power-sliding rear window and XM Satellite Radio.

实用方便的各种物品可在系统性红斑狼疮和SIL模型，包括触摸屏无线电导航系统，动力操作的天窗，电动滑动后窗玻璃和XM卫星广播。

A radio channel estimation technique is described for use in a OFDM-based radio communications system.

描述一种在基于OFDM的无线电通信系统中使用的无线电信道估计技术。

Based on the analysis of radio channels'characteristics including the fading characteristics and dynamic characteristics, the model of mobile radio channel is presented.

无线信道特性主要分析了信道的衰落特性和动态特性，并在此基础上给出了无线移动信道的模型。

Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.

最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势，并设计了一款彩色夜视摄像机。

Only person height weeds and the fierce looks stone idles were there.

只有半人深的荒草和龇牙咧嘴的神像。