common emitter junction phototransistor

例句：

1. 1. The common emitter junction phototransistor is a crucial component in the design of high-performance electronic circuits.
   共发射极结光电晶体管是高性能电子电路设计中的关键元件。
2. 2. In this project, we used a common emitter junction phototransistor to detect the presence of pollutants in water samples.
   在这个项目中，我们使用共发射极结光电晶体管来检测水样中的污染物。
3. 3.The common emitter junction phototransistor has been widely applied in various fields such as environmental monitoring and medical imaging.
   共发射极结光电晶体管已被广泛应用于环境监测和医学成像等领域。