transistor amplifier circuit

例句：

1. 1. The transistor amplifier circuit is the heart of the radio receiver.
   晶体管放大器电路是收音机的心脏。
2. 2. The engineer designed a new transistor amplifier circuit to improve the signal quality.
   工程师设计了一种新的晶体管放大器电路，以提高信号质量。
3. 3.The transistor amplifier circuit was used in the early computers to amplify signals.
   晶体管放大器电路在早期的计算机中被用来放大信号。