查询词典 radio-frequency

Radio telescopes are relatively inexpensive; radio signals travel at the speed of light, faster than which nothing can go; and the use of radio for communication is not a short-sighted or anthropocentric activity.

射电望远镜相对来说是昂贵的，无线电信号以光速行驶，没有什么比起它能走的更快了；而且无线电对于传播的使用不是一种短视或者以人类为宇宙中心的行为。

You may have access to a radio or radio/cassette, or radio cassette/cd player.

您可以使用收音机或收/录音机，或收录机/CD播放器。

All provide a mixture of local news and comment, with some entertainment matter, mainly pop music, in between. In 1991 the Home Secretary appointed a new Radio Authority to take over the functions related to radio of the old IBA, and in particular to grant new licences to broadcast. In the 1990s there should be one or more new commercial radio stations broadcasting nationwide, including one 'non-pop' station, possibly for continuous broadcasts of classical music.

他们既提供地方新闻和评论，还插入一些娱乐节目，其中主要是流行音乐。1991年，内政大臣任命了一个新的广播公司，取代旧英国独立广播管理局的相关功能，尤其是为广播电台颁发新的许可证。20世纪90年代，一个或多个新的商业广播电台在全国范围内应运而生，包括一个"非流行音乐"台，用于长期播放古典音乐。

The theme of this thesis is to study applications of radio communication technologies to direct control of air conditioning load. Other than of Taiwan Power Company self constructed radio load management system, technical feasibility of controlling air conditioners by FM subcarriers of commercial broadcasting stations as well as radio paging system of telecommunication companies are to be studied.

摘要本研究探讨无线电通讯技术於空调负载直接控制之应用，除台电目前既有之无线电负载管理系统，本研究针对租用电信公司无线电传呼系统之无线电传呼式负载管理系统及租用广播公司副载波系统之副载波负载管理系统进行分析与可行性之探讨。

Adopt the generalized maximum likelihood radio test based on the Neyman-Pearson algorithm, to study two unresolved Rayleigh targets. And deduced the detection statistic which is chi-square random variable, which only need to know the conditional probability density functions of echo's measured amplitude, in-phase and quadrature of monopulse radio, but the signal-to-noise radio and the direction-off-arrival of any signal are unnecessary.

采用基于涅曼-皮尔逊准则的广义似然比检测，对不可分辨的两个瑞利目标进行了研究，推出了服从χ2分布的检验统计量，此方法只需要知道目标回波信号测量幅值的条件概率密度函数、单脉冲和差比值的同相和正交部分，而不需要任一目标信号的信噪比和DOA的先验知识。

Receiving, the radio waves from celestial observation equipment, which can be used to determine the strength of celestial radio, radio source location, size, the polarization of the radio emission and spectrum, etc..

接收、观测来自天体的射电波的设备，它可用来测定天体射电的强度，射电源的位置、大小，射电辐射的偏振和频谱等等。

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Its include: barrel, set up in the barrel components of the screw, fuel tanks, motor oil, the radio front plate, Radio Taiwan after the board and guide column, referred to the radio through the bottom of the front plate connected to the guide block guide Column, referred to Taiwan after the radio connected to the rod on the board.

其包括：机筒，设置在机筒元件中的螺杆，油缸、油马达、射台前板、射台后板、引导柱，所述的射台前板通过下端的引导块连接在引导柱上，所述的射台后板连接在活塞杆上。

The article is based on the now-being general radio module, using AT89S52 microcontroller to control the radio, by 1602 for liquid crystal display modules, with TEA5767 the high sensitivity, low voltage and low power consumption of all the advantages of integrated chips for the radio module. the reliability is improved and the feeling of comfort is better through the reasonable design, so the function of radio is more powerful compared with tradition one .

本文在已有的收音机模块的基础上，采用AT89S52微控制器对收音机进行控制，由 1602液晶模块作显示，用TEA5767的高灵敏度，低电压和低功耗的全集成的优点作收音模块芯片，通过合理设计，制作了一款完善的数字调谐收音机，并增加了传统收音机所不具备的功能，使之达到了较为理想的效果。

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性，但我大喊，并在他们的方向扔石头让他们过的线索，远离我，以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。