A senior industrial designer travels to Nanming, where the building is about to collapse. The wind and rain are precarious, and the country is shifting frequently. With the science and technology of later generations, can the protagonist turn the tide and save the world of the Han people? Fortress, rear-mounted heavy artillery. History, changed from the moment the protagonist travels through! ———————————————— The author has finished this work 'Engineer in the Late Ming Dynasty' with 2.5 million words, welcome to move to read .