1) VHF
[英][,vi: eɪtʃ 'ef] [美]['vi 'etʃ 'ɛf]
甚高频
1.
DESIGN AND DEVELOPMENT OF ARC/INFO BASED VHF COMMUNICATION OVERLAY SYSTEM;
基于ARC/INFO的甚高频通信覆盖评估系统的设计和开发
2.
Design of a VHF Frequency Synthesizer;
一个甚高频频率合成器的设计
3.
This paper describes the advantages of selection of carrier current frequency for SQUID in very high frequency (VHF) bands in order to improve magnetic sensitivity of 77K superconducting quantum interference device (SQUID) magnetometer.
本文阐述了为提高 77K超导量子干涉器(superconducting quantum interference device简称SQUID)磁强计的磁场灵敏度,选择 SQUID载波电流频率在甚高频(简称 VHF)频段的优点,并介绍了在 SQUID磁强计电路中采用频率合成及锁相技术来实现电路低噪声的工作原理,使磁测有比较高的信噪比。
2) Very High Frequency(VHF)
甚高频
1.
An on-line monitoring system for partial discharge of generators was introduced,which was based on the Very High Frequency(VHF) measuring technology and the time-delay identification anti-interference principles.
介绍了一种基于甚高频测量技术和时延鉴别抗干扰原理的发电机局部放电在线监测装置,分析了装置采用的抗干扰方法。
2.
It is concluded that the signal-to-noise ratio(SNR)is higher when the frequency band is 5~50 MHz;the single impulse sequence comparing method based on very high frequency(VHF)testing technique and dual transducer coupling is efficient in interference rejection.
最后得出:5~50MHz的测量频带的信噪比较高,基于甚高频测试技术和双传感器耦合的单个脉冲时序对比法抗干扰效果良好。
3) very high frequency
甚高频(光)
4) vhf band
甚高频带
5) vhf channel
甚高频频道
6) very-high frequency band
甚高频频带
补充资料:一之为甚
1.见"一之谓甚"。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条