Radio telescopes are sometimes grouped together, is the same effect as having one big telescope to increase radio wave gathering power.
射电望远镜有时会被组合在一起，这与使用一个大望远镜来增加无线电波的收集能力是一样的。
Short-wave radio uses the 20-50 metre band.
短波收音机用的波段是20–50米。
If you hook a radio wave up with a radio, you can tell the radio wave was there because what the radio is doing?
如果你用收音机检测无线电波，你可以知道无线电波在那，因为收音机在干什么？
Cell phone photons cannot add up to become UV photons or have their effect any more than microwave or radio-wave photons can.
手机辐射的光子聚集起来并不能成为紫外线，也不能具备与微波或无线电波的威力。
你看不见无线电波。
你闻不到无线电波。
你摸不到无线电波。
Cat whisker a fine metal thread resembling the arched shape of a cat's whisker used in early radio wave detecting crystal sets.
金属细线一种质地良好的金属线，类似于猫的胡须，呈拱形。早期应用于无线电波检测晶体装置。
These sensors only need very few energies, pass the data by the relay way through the radio wave from a sensor to another, therefore they communicate with an extremely high efficiency.
这些传感器只需很少的能量，以接力的方式通过无线电波将数据从一个传感器传到另一个传感器，所以它们的通信效率非常高。
Meteor trail communication is a kind of burst communication mode, which USES reflection and dispersion of radio wave to the meteor ionization trails.
流星余迹通信利用流星电离余迹对无线电波的反射和散射作用来进行通信，它是一种突发通信方式。
The use and applicative effects of radio wave tunnel perspective instrument in Wangzhuang Coal Mine are introduced. And some further more improving opinions appearing in use are provided.
介绍了无线电波坑道透视仪在王庄煤矿的使用及应用效果，对仪器使用中出现的一些问题，提出了改进意见。
Propagation characteristic of UHF radio wave in rectangle, circle and arched tunnels is studied in this paper and the computing equation for attenuation constant is deduced.
研究UHF频段的无线电波在矩形、圆形和拱形隧道中的传播特性，推导了衰减常数的计算公式。
This paper presents an effective radio wave propagation prediction model by using radiation sources tree for microcellular environment. This model is based on ray-tracing and UTD.
提出了一种有效的微蜂窝电波传播预测模型，该模型基于射线跟踪法和UTD理论，并使用辐射源树的方法。
Leakage communication is good for solving radio wave spreading in mine laneway, and is an important mean of coal mine mobile communication credible working too.
漏泄通信技术是解决无线电波在矿井巷道中传播的有效途径，是实现煤矿井下移动通信稳定可靠的重要手段。
The terrestrial ionospheric plasma can be heated by a powerful ground-based high-frequency radio wave, which results in the disturbance of the electron temperature and density.
地面入射的大功率无线电波能加热电离层等离子体，引起电离层电子温度和密度的扰动，实现电离层的地面人工变态。
The highly sophisticated electronic methods rely on either light or radio wave propagation.
较复杂的电子技术是利用光或无线电波传播。
A radio wave is of the same family as heat waves, light waves, X-rays and gamma rays.
无线电波与热波、光波、X射线和伽马射线一样都属于同一族系。
The radio wave refraction correction for improving the accuracy of GPS navigation and location is necessary.
因此要提高GPS的定位导航精度，就必须进行电波折射修正。
On top of the hill stands a metal tower which is used to send and receive radio wave.
山顶有一个铁塔，用来发送和接受无线电波的。(主语太长)。
In this paper, a DSP-based HF channel simulator within audio bandwidth is designed and implemented based on the concerned theory on the effects caused by the ionosphere in radio wave.
根据电离层影响无线电波传输的有关理论，本文设计并实现了一种基于DSP的话音带宽短波信道模拟器。
Two calculation modes of VHF radio wave for the Yangtze River area from Chongqing to Shanghai are given in the form of formulas and charts.
通过公式及图表给出了长江流域（重庆—上海）段VHF无线电波的两种计算模式。
It was modified combined with their actual measured values that the environmental factors in radio wave propagation model equation matrix of underground complex environment.
对井下复杂环境中无线电波传播模型方程中的环境因子矩阵，结合了实际测量值对其进行了修正。
As a result, a single radio wave from an FM station is only a few meters long, about the size of a car.
所以，一个单独的电波信号从FM电台里出来，对车而言就是几米的距离。
On the base of this channel, we analyze the characteristics of the radio wave small-scale fading.
在此基础上对高速铁路的电波传播特性进行了小尺度衰落特性的研究分析。
Evaporation ducts, or tropospheric ducts in general, can guide radio waves to distances far beyond the horizon with less attenuation, and then severely impair some certain radio wave system.
以蒸发波导为代表的对流层大气波导传播，可使电波在较小的衰减下沿波导传播得很远，从而严重影响合适的无线电系统。
In combination with the result, the author points out that radio wave attenuations in roadway is mainly by wave refraction and reflection rather than wall absorption.
结合理论分析，指出无线电波在井巷中引起电波衰减的主要原因是波的折射与反射，而不是巷壁的吸收。
Calculating the radio wave propagation circuits is one of the most important tasks in planning radio project for a mobile communication system.
对一个移动通信系统来说，电波传播电路计算是无线规划的最重要问题之一。
Radio wave bending is caused by atmospheric refraction, which leads to the distance measured by radio navigation system different from the truth.
大气折射效应会引起无线电传播路径发生弯曲，使得无线电导航定位系统中测量到的距离与真实值有一定的误差。
Radio wave bending is caused by atmospheric refraction, which leads to the distance measured by radio navigation system different from the truth.
大气折射效应会引起无线电传播路径发生弯曲，使得无线电导航定位系统中测量到的距离与真实值有一定的误差。
应用推荐