high frequency and low noise transistor

例句：

1. 1. The high-frequency transistoris used in radios and televisionsto amplify signals.
   高频晶体管用于收音机和电视机中放大信号。
2. 2. The low-noise transistor is essential forsensitive electronic devices that require low background noise.
   低噪声晶体管对于需要低背景噪声的敏感电子设备至关重要。
3. 3. Thehigh-frequency and low-noise transistors aredesigned to operate at different frequencies andhave different noise levels.
   高频和低噪声晶体管被设计成在不同的频率下运行，并具有不同的噪音水平。