heterojunction bipolar transistor

例句：

1. 1. The deviceis used in high-speed digital circuits to improve signal transmission efficiency.
   这种设备用于高速数字电路中，以提高信号传输效率。
2. 2. The designof the heterojunction bipolartransistor is crucial for achievinghigh power density and low noise.
   异质结双极晶体管的设计对于实现高功率密度和低噪声至关重要。
3. 3. The heterojunction bipolar transistor has beenwidely used in various electronic devices due toits excellent performance.
   由于其出色的性能，异质结双极晶体管在各种电子设备中得到了广泛应用。