This paper goes into the application of the GaAs Dual-Gate FET to the high frequency tuning-amplification and frequency conversion in a TV UHF channel selector and gives some experimental results.
本文讨论了砷化镓双栅场效应管在电视接收机UHF频道选择器中作高频调谐放大和变频应用时的一些考虑，并给出有关的实验结果。
ImpaCt will allow you to hear the high frequency speech cues that traditional amplification does not.
“移频”可以使您听到并辨别传统助听器无法使您听到的高频语言声。
ImpaCt will allow you to hear the high frequency speech cues that traditional amplification does not.
“移频”可以使您听到并辨别传统助听器无法使您听到的高频语言声。
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