How Does a Radar Work?
0:28
YouTubeEngineering and scienceTrivia
How Does a Radar Work?
How does a radar work? A radar works by sending out short pulses of radio waves, which bounce off objects and return to its antenna. By measuring the time it takes for the signal to return, radar calculates the distance of the object. The reflected signal is displayed as a radar cross-section, with its size depending on how much energy is ...
94.2K views9 months ago
驾驶安全预警仪介绍
一款可以测速雷达语音播报北斗HUD汽车预警仪，让您驾车无忧汽车安全预警仪开车警示提醒器 汽车警报喊话器 汽车测速仪器 车载电子狗巨量千川 DOU小助手
0:17
一款可以测速雷达语音播报北斗HUD汽车预警仪，让您驾车无忧汽车安全预警仪开车警示提醒器 汽车警报喊话器 汽车测速仪器 车载电子狗巨量千川 DOU小助手
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10 views2 months ago
不需要流量。不需要卡。只要插入USB供电即可使用，车速显示，语音播报，真的太方便了，安全预警仪，北斗显示#汽车好物 #汽车用品 - 抖音
不需要流量。不需要卡。只要插入USB供电即可使用，车速显示，语音播报，真的太方便了，安全预警仪，北斗显示#汽车好物 #汽车用品 - 抖音
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Nov 10, 2023
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