smoke alarm

英 [ˈsməʊk əlɑːm]

美 [ˈsmoʊk əlɑːrm]

n. 烟雾报警器(用于预防火灾)

牛津词典

noun

烟雾报警器（用于预防火灾）
a device that makes a loud noise if smoke is in the air to warn you of a fire

(预防火灾的)烟雾报警器
Asmoke alarmor asmoke detectoris a device fixed to the ceiling of a room which makes a loud noise if there is smoke in the air, to warn people.

noun

Design, production, installation and System performance testing for smoke alarm system;
烟雾报警系统设计、安装、检修及功能试验。
Is smoke alarm policy effective?
感烟报警器政策是否有效？
A small girl saw the smoke and sounded the alarm.
一个小女孩看见烟，启动了警报器。
The image collected by sensor is clear and intact, so it meets the image quality requirement. The system can detect the frame and smoke to implement alarm in the early fire.
传感器采集的图像清晰完整，满足系统对图像质量的要求，能够识别出火灾图像，实现早期火灾检测。
According to the inventors, young children often panic and hide when they hear a conventional smoke alarm, sometimes fearing they have done something wrong to set it off.
据这些发明人说，小孩子们在听到传统的烟雾报警器报警时，往往会惊慌失措而藏起来，有时他们会很害怕，以为自己做错了事而弄响了报警器。
Smoke activates the alarm.
烟雾触发警报器。
He woke with a start when the smoke alarm went off.
当烟雾报警器响时，他惊醒过来。
A Smoke Alarm Device with High Sensitivity
高灵敏度烟雾报警装置的研究
Study of Scatter Smoke Infrared Alarm Detector
散射式感烟红外报警探测器机理的探讨
Adaptability of Aspiration Smoke Detection Alarm in Subways
吸气式烟雾探测报警技术在地铁中的适用性