biosensor

例句：

1. 1. Biosensors are used to detect the presence of specific chemicals in the environment.
   生物传感器用于检测环境中特定化学物质的存在。
2. 2.The biosensor was designed to monitor the level of pollutants in water.
   这个生物传感器被设计用来监测水中污染物的水平。
3. 3.Researchers have developed biosensors that can detect diseases at the early stages.
   研究人员已经开发出可以检测疾病的早期阶段的生物传感器。