Group 1 - The 11th World Radar Expo officially opened in Hefei, Anhui, showcasing multiple advanced radar systems [1] - The expo features four main areas: intelligent electronic equipment and industrial chain, industry application, new generation information technology, and outdoor installation [3] - A variety of radar systems were displayed, including the P-band long-range early warning phased array radar, known as the "Sky Eye," capable of detecting threats over thousands of kilometers [5] Group 2 - The China Electronics Technology Group showcased over 400 advanced electronic information products, highlighting the advantages of China's military electronics industry and its information capabilities [7] - The expo covered military and civilian applications, providing high-precision data services for disaster warning, smart cities, and low-altitude economic development [9] - Since its inception in 2001, the World Radar Expo has become the largest and most influential international exhibition in the radar field, with over 600 global companies participating this year and an exhibition area exceeding 50,000 square meters [9]