oxygen sensor

例句：

1. 1.The oxygen sensor is used to detect the concentration of oxygen in the air.
   氧气传感器用于检测空气中氧气的浓度。
2. 2. The oxygen sensor is an important component of the fire safety system.
   氧气传感器是火灾安全系统的一个重要组成部分。
3. 3.The oxygen sensor helps to prevent carbon monoxide poisoning in cars.
   氧气传感器有助于防止汽车中的一氧化碳中毒。