Chang Haonan, a military worker in 2023, was reborn and returned to 1996, his college days. In this darkest moment before China's military industry took off, he obtained a [scientific research guidance system] that was comparable to the strongest mentor. Starting from improving a fighter jet, we embarked on a completely different scientific research path from the previous life. Aviation engines, phased array radars, nuclear-powered aircraft carriers, advanced semiconductors... These are just the beginning. The desert turns into an oasis, the natural chasm turns into a thoroughfare, the moon is caught in the sky, and turtles are caught in the five oceans. These are not the end either. [System: Some people say that it is better to teach a man how to fish than to teach him how to fish. I am different. 】 [Chang Haonan:? ? ? 】 [System: I can give them all. 】