UHF

例句：

1. 1. The UHF signal is very weak here.
   这里的UHF信号非常弱。
2. 2. The UHF antenna is located in the top of the building.
   UHF天线位于大楼顶部。
3. 3. The UHF band is used for emergency communications.
   UHF频段用于紧急通信。