A deep-learning-based two-stage approach for real-time explicit topology optimization SUN Shu-yang1,2,CHENG Wei-bin1,ZHANG Hao-zhen1,DENG Xiang-ping1,QI Hong1,2 (1. College of Computer Science and Technology,Jilin University,Changchun 130012,China; 2. Key Laboratory of Symbolic Computation and Knowledge Engineering of Ministry of Education, Jilin University, Changchun 130012, China) Abstract: To overcome the shortcomings like computational expensive and inability to generate structures with explicit geometry of traditional topology optimi