The train-ground radio communication system of Maglev trains is the information exchange channel for trains and the ground control center.
磁浮列车车地无线电通信系统则是列车与地面控制中心进行信息交换的通道。
The statistic model of air-ground radio communication channel is characterized by the multipath fading, Doppler power spectrum and delay power spectrum.
空地通信信道的主要统计特性包括多径衰落特性、多普勒功率谱和时延功率谱。
He warned that traditional media - television, radio and newspapers - are losing ground.
他警告说，传统媒体-电视，电台和报纸-正在失去地面。
The payload on the test Patroller includes an optronics pod, infrared sensors, and a real-time link through radio and satellite channels to the ground station at the Canjuers Army camp.
测试该机的有效载荷包括光电吊舱，红外传感器，及位于康瑞埃军营的通过无线电和卫星实时联系的地面站。
Information came in from people on the ground via SMS, the Web, email, radio, phone, Twitter, Facebook, live Internet streams and other reports.
身处现场的人们可以通过短信、网站、电子邮件、无线电、电话、twitter、Facebook、网络通讯工具(live Internetstreams and o ther reports)等多种方式上传信息。
Another pilot on the ground at the heliport saw the plane approaching and tried to radio an alert to the helicopter above. But the warning was either not heard, or failed to get through in time.
另一名驾驶员在机场地面看到小型飞机向直升机飞近，他设法用无线电紧急警告上空的直升机驾驶员，但他可能没有听到，或听到时为时已晚。
Check ground connection of radio.
检查收音机的接地连接。
A clearly worried Walters used his CB radio to transmit a mayday call, which was picked up by operators on the ground who then maintained contact with him throughout the flight.
Walters真的担心起来，他用无线电发了呼救信号，地面接线员接到信号并自此和他一直保持联系。
The idea of inflatable spacecraft is not new. The Echo I - NASA's first communication satellite - was essentially 100-foot-wide Mylar balloon that reflected radio transmissions from the ground.
充气式航天器并不是什么新颖的想法，NASA的第一颗通讯卫星回声1号实际上就是一个宽30米的聚酯薄膜大气球，它是用来发射来自地面的无线电广播的。
The ground movements picked up by sensors are converted into radio signals, that are transmitted to then recorded at the centre.
感应出的地层活动会被转成无线电讯号，然后传送到观测中心纪录下来。
The software-driven Single Channel Ground and Airborne Radio System constitutes a family of manpack, vehicular, and airborne radios manufactured by ITT’s Communications Systems Division.
单信道地面和机载无线电系统由ITT公司制造的背负式、车载和机载无线电组成，其中最广泛使用的无线电是PRC-119。
There is a Ham radio onboard ISS and anyone on the ground, with the right equipment and good timing, can talk to the crew.
空间站里有一个业余无线电系统，在合适的时间，设备正常的情况下，地上的任何人都可以与他们通话。
I get a radio call from the guys on the ground recommending right to left or left to right.
地面上的同事会用无线电建议我是从右向左飞还是从左向右飞。
With the help of Remote Data Transceiver, Hump Radio Locomotive Telecontrol System implemented the remote communication between locomotive and ground then controls locomotive to pushing hump in yard.
驼峰无线机车遥控系统是通过无线数传电台实现车载-地面通信，进而实现驼峰推峰机车控制功能的系统。
It can be used in developing the short range radio navigation ground beacon and testing the performance of its transmitter.
该平台可在近程无线电导航地面导航设备的研制中确定发射机参数和检验性能时使用。
Radio Block Center (RBC) is the kernel subsystem of the ground system in high-speed railway signaling system.
无线闭塞中心（RBC）是高速铁路信号系统的地面核心子系统。
Radio altimeters measure the distance of an aircraft above the ground rather than above sea level, they are used in automatic navigation and Blind-landing systems.
无线电高度表测量的是飞机离地面而不是离海平面的距离，用于自动导航及仪表着陆系统上。
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。
A radio navigational aid for determining the distance from a selected DME ground station by measuring the time of transmission to and from it.
飞机上的一种无线电导航设备，通过测量电波往返飞机和预选地面（DME）台之间所需要的时间来确定两者间的距离。
Measuring the quality factor G/T of a ground receiving system with cosmic radio sources is a method commonly used in most earth stations.
利用宇宙射电源测量地面接收系统品质因数G／T值是大多数地球站普遍采用的测量方法。
This is significant because of the unique geometrical features of the Arecibo telescope: whereas most radio dishes are parabolic in shape, the Arecibo dish is a giant half-sphere dug into the ground.
这非常重要，由于阿雷西博望远镜的独特几何结构：尽管绝大多数的射电望远碟面都是抛物面型的，而阿雷西博的碟面是在地上挖出的一个巨大半球。
Due to the profound differences between China and Europe railway system, much localization is in need including network, cab radio, ground station and relevant equipments.
由于中国铁路和欧洲铁路的差异，迄今为止大量的本地化工作都在进行中，包括系统网络、车载终端、地面终端以及配套设施等。
The Doppler spectral broadening due to nonstationary movement of target and radio-frequency clutter will decrease the veracity of target detection by high frequency ground wave (HFGW) radar.
海面低速目标的非均匀运动和射频瞬态干扰引起的多普勒谱展宽影响高频地波雷达检测目标的准确性。
Products can be widely used in microwave communications, satellite ground stations, radio, navigation, radar and other fields.
产品可广泛应用于微波通信、卫星地面站、广播、导航、雷达等领域。
The beam is wide enough at that distance to hit a lot of stars, and still be strong enough for someone to notice. But I can't send a radio signal through the ground.
如果能做到，我会对准最近的星系，在这样遥远的距离上，波束会发散的足够广阔，会覆盖到许多星星。
The beam is wide enough at that distance to hit a lot of stars, and still be strong enough for someone to notice. But I can't send a radio signal through the ground.
如果能做到，我会对准最近的星系，在这样遥远的距离上，波束会发散的足够广阔，会覆盖到许多星星。
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