双极场效应晶体管

例句：

1. 1. The transistor is a critical component in modern electronics.
   晶体管是现代电子学中的关键元件。
2. 2.The bipolar transistor has been widely used in amplifiers and oscillators.
   双极晶体管在放大器和振荡器中得到了广泛应用。
3. 3.The bipolar transistor is a popular choice for high-frequency applications due to its high gain and low noise.
   由于其高增益和低噪声，双极晶体管是高频应用的热门选择。