1.
earth-ionosphere waveguide radio wave propagation
地-电离层波导电波传播
2.
electromagnetic waves,eg X-rays,radio-waves,light waves
电磁波（如X 射线、无线电波、光波）.
3.
radio wave propagation in tropospheric radio duct
对流层波导电波传播
4.
prediction of ionospheric radio wave propagation
电离层电波传播预报
5.
radio wave propagation in the ionosphere
电离层无线电波传播
6.
static at radio wavelengths.
无线电波长的静电干扰。
7.
spontaneous brain wave
自发性脑电波 自发性脑电波
8.
Techniques on Measuring the Reflection Level of an Absorber Wall in an Anechoic Chamber
电波暗室吸波墙壁反射电平测试技术
9.
Radio waves are similar to light waves except their wavelength is much greater.
无线电波与光波相似，但无线电波的波长要长得多。
10.
Where beta represented arousal, alpha re presents non-arousal.
β波代表觉醒时的脑电波，而α波代表非觉醒时的脑电波。
11.
Radio wave: Wave from the portion of the electromagnetic spectrum at lower frequencies than microwaves.
无线电波:电磁波谱中比红外辐射频率更低的电波部分。
12.
short wave( radio wave with a length between 100 and 10 metres )
短波（波长在100米与10 米之间的无线电波）
13.
colour subcarrier trap
彩色副载波陷波电路
14.
a very short electromagnetic wave.
波长非常短的电磁波。
15.
radio (directional) beam
无线电(定向)波束
16.
high -frequency channel
高频电路, 载波电话通路
17.
photoemissive photodetector
光电发射光电检波器
18.
full-wave voltage impulse
(避雷器的) 全波电压电击