一般的光电设备,像可见光设备、红外设备和微光夜视设备都可以用来探测人,但这些设备不能探测在混凝土墙、金属门等遮蔽物后面的人。目前,科学家已研制出能探测隐藏在混凝土墙或金属门后面的人的装置。特种部队可以用它们来探测并确 General optoelectronic equipment, such as visible light equipment, infrared equipment and low-light night vision equipment can be used to detect people, but these devices can not detect the concrete walls, metal doors and other people behind the shelter. At present, scientists have developed devices that can detect people hidden behind concrete walls or metal doors. Special Forces can use them to detect and indeed