Short wave
01
短波, 高频波
a radio wave that has a frequency between 3 and 30 MHz, and a wavelength between 10 to 100 meters, used for broadcasting
例子
Short wave signals can travel thousands of miles by bouncing off the Earth's atmosphere.
短波信号可以通过从地球大气层反射传播数千英里。
The short wave signal was perfect last night, and I could hear stations from all over the world.
昨晚的短波信号非常完美,我能听到来自世界各地的电台。



























