high-frequency amplification

例句：

1. 1. The high-frequency amplifier is used to boost the signal strength of weak signals.
   高频放大器用于增强弱信号的信号强度。
2. 2. In high-frequency amplification systems, the signal is amplified by using a device that can convert electrical energy into acoustic energy.
   在高频放大系统中，信号通过使用可以将电能转换为声能的设备来放大。
3. 3. High-frequency amplification technology has been widely used in wireless communicationsystems to improve signal transmission efficiency.
   高频放大技术在无线通信系统中被广泛使用，以提高信号传输效率。