728x90 반응형 Unmanned Aerial Vehicle1 What is an Unmanned aerial vehicle? What is an Unmanned aerial vehicle? In 2014, a North Korean Unmanned aerial vehicle was first discovered in South Korea. Since then, several units have been discovered in 2017, and it is becoming an issue as it discovers unmanned aerial vehicles these days. In fact, this fact is nothing new. It is just a disaster caused by South Korea's response to North Korea. In the past five years, the first .. 2022. 12. 27. 이전 1 다음 728x90 반응형