Introduction: Technology is the primary productive force and the foundation of the dream of a great power. At the end of the last century, Xiang Qianjin, who was reborn and returned, faced new choices again, using his own knowledge, usinghis own technology, and starting a new technological breakthrough on the road of restarting, chasing the technological gap, and narrowing the gap with the world''s top technology until Beyond! Change your life and turn the misfortune of the past into the happiness of today! A technical expert who was reborn thirty years ago will use this thirty years of falling from the sky to rewrite the legendary life of a scientific researcher. It is like an epic picture scroll of scientific research. It will be paved with thorns, connections, funds, technology, and technology. A straight line, it contains too many things, from the poor and the white to the peak of life, creating miracles in the impossible, rebirth gives Xiang Qianjin such an opportunity! Doing it all over again does not mean doing it again, but climbing to a higher technical pinnacle!...