The wafer is a piezoelectric resonator, expanding and contracting in response to electrical voltages at a precise, extremelyhighfrequency.
该晶片是一个压电谐振器，以精准而极高的频率对电压作出反馈，进行放大和收缩。
2
Raytheon Company (NYSE: RTN) and the U.S. Army recently completed successful testing of the first Advanced ExtremelyHighFrequency, or AEHF, satellite communications production terminals.
雷神公司和美国陆军最近成功完成首个先进极高频或AEHF卫星通信生产终端测试。
3
They have an incredibly wide frequency range, especially in the low end, and even at extremelyhigh gain Settings.