GaAs infrared searchlight with novel structure of a coaxial double reflective bowls was used in 1985 for police night vision device.
一个具有同轴双反光碗的新型结构的砷化镓红外探照灯在1985年正式使用于警用红外夜视仪中。
Using reflective near infrared sensor and voice record-reproducing assembly, the present article studies the voice anticollision-prompting device for backing an automobile.
利用反射式近红外传感器及语音录放组件，研究了汽车倒车防撞语音提示器。
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