Return to the Former Dynasty and Build a Navy

The top scholar in science and engineering in the province of Huaxia became a naval officer. He was on a modern warship and accidentally traveled to ancient times and came to the Qinglong Dynasty. Facing an era without any industrial foundation, we want to build a powerful naval fleet to defend this extremely tragic dynasty in history. In desperation, he could only make iron first, then steel, make guns, cannons, and then develop gunpowder TNT, RDX...