detector noise-limited operation

例句：

1. 1. The device is usedto detect the presence of a specific chemicalin the air.
   这个装置用于检测空气中特定化学物质的存在。
2. 2. The scientist used a detectorto find traces of radiation in thearea.
   科学家使用探测器在该地区发现了辐射的踪迹。
3. 3. The detector was designed to detectany unusual noise or vibrations in theenvironment.
   该探测器被设计用来检测环境中任何不寻常的噪音或振动。