Nov 23,2019, Dr. Zhang were with the Professor Cong Jingsheng (member of the American National Academy of Engineering) for his election as a foreign academician of the Chinese Academy of Engineering in 2019. Left is the famous Chinese mathematician, Professor Zhang Yitang.
祝贺丛京生教授（美国国家工程院院士）当选为2019年中国工程院外籍院士。左为著名数学家张益唐教授。