上海市机械施工公司在有关单位的协助下,研制成功一种袖珍型无线电通话设备。这种设备体积小,重量轻。把它安装在消防头盔内,消防员可通过帽带上的喉头送话器和具备同样设备的指挥员进行联系,既提高了通话效率,还能保证安全。 Shanghai Construction Machinery Corporation, with the assistance of the relevant units, successfully developed a compact radio telephone equipment. This equipment is small and light weight. By installing it in a fire helmet, firefighters can communicate with a commander with the same equipment through a laryngeal microphone on the cap strap, improving both call efficiency and security.