Yang Hai from Aerospace Science and Technology Group is fine. Yang Haicheng, former executive vice president of Northwestern Polytechnical University, professor and doctoral supervisor, is currently the chief engineer of China Aerospace Science and Technology Corporation, the head of the expert group of modern integrated manufacturing system technology in the Tenth Five-Year Plan, the overall team leader of the Tenth Five-Year Plan manufacturing informatization project, the chairman of Beijing Shenzhou Aerospace Software Technology Co., Ltd., and the editor-in-chief of China Manufacturing Informatization, Computer Integrated Manufacturing System CIMS and Digital Military Industry.