This Cold War-Era intrusion-detection system was designed to blend in with the terrain and could detect movement of people, animals or objects up to 300 meters away.
这款冷战时期的侵入侦测系统旨在与周围环境融为一体，它能够探测300米之外的任何活动物体。
This Cold War-Era intrusion-detection system was designed to blend in with the terrain and could detect movement of people, animals or objects up to 300 meters away.
这款冷战时期的侵入侦测系统旨在与周围环境融为一体，它能够探测300米之外的任何活动物体。
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