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。
A very low frequency of transmittance to visceral tissue was confirmed in pigs, but not in sheep. 确认了猪,但不是羊,会发生非常低频率的(基因片段)内脏组织转移。
Very low frequency band radiated field system 甚低频带辐射场系统
Emissions of light and very low frequency perturbations due to electromagnetic pulse sources 因电磁脉冲源引起的光辐射和甚低频微扰
A long range link, established with the high power Very Low Frequency(VLF) ( VLF ) system, resists atmospheric nuclear effects and is very difficult to jam. 用高功率甚低频系统建成的一条远距离链路,可抵抗大气核爆炸效应,且敌人很难干扰。