1.
public safety radio frequency
公共安全无线电频率
2.
public safety radio service
公共安全无线电服务
3.
Frequency Compensation in All Channel CATV Systems.
全频道共用天线电视系统的频率补偿
4.
Researche and Development on the Security Architecture and Applications of PWLAN;
公共无线局域网（PWLAN）安全体系及其应用
5.
Researches on Security Architechture and Application of Public Wireless Local Area Network;
公共无线局域网安全体系与应用研究
6.
Seriously Study"Radio Frequency Division Regulations of the PRC;
认真学习《中华人民共和国无线电频率划分规定》
7.
radio frequency emission testing
无线电频率放射测试
8.
international distress radio frequency
国际呼救无线电频率
9.
frequency tolerance of radio transmitter
无线电发射机频率容限
10.
marine frequency
海上无线电通信频率
11.
a radio-frequency amplifier.
一种无线电频率放大器。
12.
distress frequency
无线电频率遇险呼救频率
13.
Radio operates, as you might expect, in the public portion of the radio spectrum.
正如想象的那样，无线电工作在无线电频谱的公共部分。
14.
LOR (Low-frequency Omnidirectional Radio Range)
低频全向无线电信标
15.
medium frequency non-directional radio beacon
中频全向无线电信标
16.
very high frequency omnirange
甚高频全向无线电信标
17.
Research on Security Authentication and Network Management of Pwlan;
公共无线局域网安全认证与管理技术研究
18.
very high frequency(abbr. VHF) radio frequency of 30 to 300 megahertz
甚高频（30到300兆赫的无线电频率）.