low-frequency radio telescope 低频射电望远镜 ; 低频射电看远镜
low power radio frequency 低功率射频
low frequency radio telescope 低频无线电望远镜 ; 低频射电望远镜
low frequency radio-range 低频无线电导航信标
modular low power radio frequency 低功率射频模块
four-course low-frequency radio range 四航道低频无线电信标
low frequency radio astronomy 低频射电天文学
low medium frequency radio range 低中频无线电导航信标
low frequency radio range 低频无线电频段 ; 低频无线电范围
The first stage of the European Low Frequency Array (Lofar) telescope involves 96 radio antennae being erected this week in a field at the Chilbolton Observatory near Andover, Hampshire.
Lofar望远镜的一期工程位于罕布什尔的安多佛，由96个无线电天线组成的望远镜将在本周被安装完毕。
What is needed is a system that USES low-frequency radio waves.
这需要的是一种利用低频无线电波的系统。
The other problem is that submarines receive messages using low-frequency radio waves that can penetrate water, but only a few characters per second can be transmitted at these frequencies.
另一个问题时潜艇在水下时用低频进行通信，因为低频可以穿透海水传播，但用低频通信时，通信速度只能每秒几个字符。
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