unijunction switchingtransistor

例句：

1. 1. The unijunction switching transistor is used in high-speed digital circuits to control the flow of current.
   单极结开关晶体管用于高速数字电路中控制电流流动。
2. 2. The unijunction switching transistor has a high breakdown voltage and low power consumption, making it suitable for use in power electronics.
   单极结开关晶体管具有高击穿电压和低功耗，适用于电力电子领域。
3. 3. In the design of a new circuit, the unijunction switching transistor was chosen due to its excellentperformance and reliability.
   在新型电路的设计中，选择了性能优良、可靠性高的单极结开关晶体管。