Daliang's Counterattack

A modern engineering doctor traveled through time and became a prisoner on death row in the Liang Dynasty - using fluid mechanics to solve the moat crisis to save himself, using double-entry bookkeeping to detect corrupt officials, using engineering to repair water conservancy, and using management to build a team. From prisoner to imperial master. It's a dead end at the beginning, how to break it, whether I succeeded in saving myself or got involved in a larger chess game. I'm just a PhD in engineering. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.