1) VLF
甚低频
1.
Numerical Calculation of VLF Umbrella Transmit Antenna;
甚低频伞形发射天线数值计算
2.
Performance Analysis of Power Devices Used for VLF Solid-state Amplifier;
甚低频固态发射机功率器件分析
3.
Discussion of Shield Issue under VLF Strong Electromagnetic Environment;
甚低频强电磁环境下屏蔽问题的探讨
2) Very low frequency
甚低频
1.
Observation and study on phase of very low frequency propagation over polar area;
甚低频横跨极区传播相位的观测与研究
2.
A new design of naval mine is studied, which is remote-controlled by the very low frequency electromagnetic wave.
介绍了一种新型的利用甚低频电磁波进行水雷遥控的方案;利用甚低频的衰减特性,计算出在距发射点约400km处的辐射电场的场强,分析了在水下15m处与30m处的近似场强,根据得到的数据得出了甚低频遥控水雷设计的可行性;在此基础上,进一步论述了用FSK进行数字调制的系统设计方案,详细描述了遥控发射机与接收机的设计方法,水雷的分区编解码原理以及发射与接收天线的设计。
3.
The selection of the insulator applied for a large power very low frequency transmitting antenna were studied.
本文对大功率甚低频发射天线用绝缘子的选型进行了研究。
3) VLF/LF
甚低频/低频
1.
Simulation Study on Atmospheric Noise in VLF/LF Communication;
甚低频/低频通信中大气噪声仿真研究
4) very low frequency (VLF)
甚低频(VLF)
6) very-low frequency band
甚低频频带
补充资料：夜甚
夜甚 夜甚 指病情多在夜间加重。夜间正气蛰伏，邪气独盛于体内，故病情加重。《灵枢·顺气一日四时》：“夫百病者，多以旦慧昼安，夕加夜甚。”“夜半人气入脏，邪气独居于身，故甚也。”
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