In radio communication, either short or long waves may be used. 无线电通讯可以采用短波也可以采用长波。
These high-frequency short waves are only able to travel in straight paths from the transmitter. 这些高频短波从发射机发出后只能以直线传播。
It is inferred that eddies transfer their energy to the blocking high over the northeastern Asia during the blocking maintenance. 据此，作者推测高频波的能量传给了阻塞形势，使阻塞形势得以维持。
