This year marked the 45th anniversary for the graduation of Grade 1970 from Department of Radio Engineering. The amiably alumni gathered at SEIE early in the morning. Many of them came here from other places. After seeing the classmates who had not been seen for years, all of them talked with each other immediately. They excitedly recalled their stories at that time. Instantly, it seemed that they returned to the moment when they studied at SCUT. As time goes by, their youth existed no more but their friendship had never been changed.