detector

烟雾探测器

A safety device that detects the presence of smoke, acting as an indicator of fire.

一种探测烟雾存在的设备，通常作为火灾的指示

金属探测器

An electronic instrument that detects the presence of metal nearby.

一种检测附近金属存在的电子仪器。

测谎仪

A device that measures physiological responses to determine if a person is telling the truth.

运动探测器

A device that detects moving objects, particularly people, often used in security systems.

雷达探测器

A device used in vehicles to detect the radio waves from a police radar gun.

辐射探测器

An instrument used to detect the presence and intensity of ionizing radiation.

一种用于探测电离辐射存在和强度的仪器。

电视信号探测车

A vehicle equipped with detection equipment, especially for finding unlicensed television receivers.

装有设备，用于查找无证使用电视机的人的货车