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- Marine VHF and microwave Line of Site Radio System. 现场无线电系统海洋VHF和微波线路。
- The same applies to a trunked radio system. 集群无线系统也是如此。
- A new two frequency laser alignment system is developed which consists of two Wollaston prisms with the same structure.One is for measurement;another for compensation. 介绍了一种新型自适应双频激光准直系统，该系统利用了两个完全对称的渥拉斯顿棱镜，一个作为测量元件，另一个作为补偿元件。
- The interval between any two frequencies having a ratio of2 to1. 倍频程频率比率为2比1的两个频率的间隔
- The Police Driving School was provided with a dedicated radio system. 警察驾驶学校亦已装设专用的无线电系统。
- This high frequency alternating current produces the high frequency radio waves mentioned in the previous chapter. 这种高频交流电流产生前一章提到过的高频无线电波。
- An advantage of resolution is they use simple setting only a cursor, measurable the modulation frequency of the radio system that cannot survey with common frequency tally or parasitism frequency. 分辨率的一个优点是他们只用简单的设置一个光标，就可测量用通俗频率计数器无法测量的无线电系统的调制频率或者寄生频率。
- Plant Trunked UHF Radio Systems. 装置超高频无线电系统。进厂控制系统。
- A new computer-aided Trunked Radio System has been put into service since September. 新的电脑化集束无线电系统于九月投入服务。
- A programme to provide a secure radio system for the Witness Protection Unit and the VIP Protection Unit was completed. 为保护证人组及要员保护组安装一套安全通讯系统的计划已经完成。
- The interval between any two frequencies having a ratio of 2 to 1. 倍频程频率比率为2比1的两个频率的间隔。
- Radio systems operating in the UHF range more susceptible to atmospheric absorption, and multipath distortion and shadow effects than the radio system, a lower frequency. 然而, 收音机在这一范围的系统已经证明他们自己相当可靠而且从竞争较不倾向于冲突服务。
- Abstract : The two frequency method for measurring corrosion reaction resistance based on a. c. impedance and numerical integration has been proposed. 摘要 ： 提出了基于交流阻抗和数值积分原理的二点频率法。
- The gigantic cloud of highly charged particles hurled from the sun posed a threat to high frequency radio communications, satellite navigation systems and television broadcasts. 携带强大电荷的巨型粒子云从太阳猛地扑向地球，对高频无线电通讯、卫星导航系统和电视广播都形成了威胁。
- In the paper,the authors analyzed polar motion data series recently released by IERS,and in combination with spectrum resolution,discussed two frequency of Chandler wobble. 分析了IERS新近公布的经统一归算的极移数据,结合频谱分析中分辨率的有关问题,进一步讨论了Chand ler摆动的双频现象。
- What Are the Primary Advantages of Trunked Radio Systems? 集群无线电对讲机系统的最大优势是什么？
- The method for generating the second signal is put forward based on the period rule of the phase difference for two frequency signals with the frequency difference. 摘要利用两个有一定频差的频率信号相位差变化的周期性规律提出了一种秒信号产生方法。
- It is reported that the radio system of the plane malfunctioned in the accident. 据报导，这架飞机的无线电通讯设备是在事故中失灵的。
- I communicate to my support crew via a ChatterBox motorcycle two-way radio system. 本人沟通，我支持船员通过长舌摩托车双向无线电系统。
- An inspection of (4. 3-5) reveals that for a given K there are two frequencies. 由式(4.;3-5)可见;对于给定的K有两个频率。
