Radar systems play a key role in land warfare and defense systems. At this year's Airshow China, China Electronics Technology Group Corp. (CETC) is showcasing the latest radar systems. CGTN reporter Wu Lei walks with Cao Jian, vice president of the 14th Research Institute of CETC, to explore some of the most advanced radar systems, including the YLC-12 C-band medium-to-low-altitude multifunctional radar and the SLC-2E multifunctional weapon positioning radar.