Video PlayerClose
Denis Flandre, professor at the Belgium's University of Louvain (UCL) engineering school, receives an interview with Xinhua at UCL near Brussels, Belgium, June 12, 2019. (Xinhua/Zhang Cheng)
Denis Flandre, professor at the Belgium's University of Louvain (UCL) engineering school, receives an interview with Xinhua at UCL near Brussels, Belgium, June 12, 2019. (Xinhua/Zhang Cheng)