1.
Wireless spectrum is a limited resource.
无线通信所需要的频率资源是有限的。
2.
"In order to make rational use of spectrum resources, it is expected to consider the following two points:"
为了合理利用频谱资源，在频率分配上恐怕有两个方面要考虑。
3.
electronic power frequency control system
电子电源频率调节装置
4.
Study on High-Resolution Frequency Synthesizer at L-band;
L波段高频率分辨率微波频率源的研究
5.
Resource allocation algorithm to improve frequency efficiency of low SNR OFDM systems
一种提高低信噪比OFDM系统频谱效率的资源分配算法
6.
frequency-domain seismic data analysis
频率域地震资料分析
7.
Research on the Frequency Tracking System of HF-Inverter Power Controlled by PI-DPLL;
基于PI-DPLL的高频逆变电源频率跟踪系统的研究
8.
Research on Frequency-Tracing Control Circuit for High Frequency Induction Heating Power Supply;
高频感应加热电源频率跟踪控制电路的研究
9.
The Application of Frequency-Tracing Technology Based on PLL for HF-Inverter Power Supply;
锁相环频率跟踪技术在高频逆变电源中的应用
10.
Research on High-power and High Frequency Multiple-frequency Inverter Supply of 700kHz
倍频式700kHz高频大功率感应加热电源的研究
11.
Research of Frequency Synthesizer and Synchronization in Frequency-hopping System
跳频通信系统中频率源和同步接收的研究
12.
An X band Low Phase Noise Wideband Frequency Synthesizer
X波段宽带低相位噪声混频锁相频率源
13.
The utilization ratio of health resources is not high.
卫生资源利用效率不高。
14.
In both cases large power sources are required.
在两种情况中都需要大功率的射频源。
15.
A New HF Monitor Instrument for the Large Power Switch Power
新型高频大功率开关电源的监测仪表
16.
Research of High Repetition Rate Nanosecond Pulsed Power Supply;
高重复频率纳秒级陡脉冲电源的研制
17.
Study on ZVS PWM High Input Voltage High Fequency High Dc Converter with High Power;
ZVS PWM大功率高频开关电源的研究
18.
The Study of High-Power High-Frequency Soft-Switching Parallel Power-Supply Module;
大功率高频并联软开关电源模块研究