From blue silk to Huafa, he has been learning and growing in the campus of North Technology, and teaching here, deeply cultivating the life career of first-class talents, and accompanied by North Technology for 63 years。He practiced and led by example，Do not forget the original intention, remember the mission，Will "Yan 'an root, military soul" of the red gene，The workers of Beijing will firmly serve the country，Passed down from generation to generation，Always be the lamp that illuminates the way ahead for the students...recently，Professor Zhang Zhonglian, 84, founder of the Beijing Institute of Technology's photoelectric Innovation Education Experimental base, has received wide media attention。

　　In the Beijing Institute of Technology, there is a light called "4002 at 11 o 'clock in the night".

　　[China Education News] In the middle of the night, the "light" in classroom 4002 is still on

　　[China Youth Daily] Zhang Zhonglian of Beijing Institute of Technology: To be a "servant" of students

　　Zhang Zhonglian: There is a lamp called "4002 at eleven o 'clock in the night"

　　[Learning power] In the middle of the night, the "light" in classroom 4002 is still on

　　[Beijing Evening News] At 11 PM, 4002 lights are still on

　　[Beijing Daily client] "Photoelectric Grandpa" : at 4002 at 11pm, the light has been on for more than ten years