例句與造句

1. Later developments produced beam power tubes which were capable of high-power output at frequencies extending into the UHF region.
2. Professional-grade wireless microphones generally use bands in the UHF region so they can run on dedicated equipment without broadcast interference.
3. The existence of radio waves was predicted by James Clerk Maxwell in 1864 from spark gap radio transmitter that produced 450 MHz microwaves, in the UHF region.
4. This HF ( ~ 10-MHz ) device had been invented in 1921 by Albert W . Hull at General Electric, and Yagi was convinced that it could function in the VHF or even the UHF region.
5. Channels making the transition generally acquired a second channel allocation in the upper UHF region to test their new equipment, and then moved into the low-UHF or high-VHF once the conversion period was over.
6. It's difficult to find uhf region in a sentence. 用uhf region造句挺難的