end_time = time.time()
Drones are hard to pinpoint on radar systems calibrated for spotting high-speed missiles and can be mistaken for birds or planes. The Merops system is designed to spot them and take them down. Crucially, the system also is cheaper than firing a missile that costs hundreds of thousands of dollars at a drone that costs less than $50,000.
。新收录的资料是该领域的重要参考
6.推动新型城镇化和区域协调发展。
«Запасов газа осталось на два дня». Европа становится уязвимой из-за конфликта на Ближнем Востоке. Почему?00:54
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