两组七码复式的方法

简介：Since the firing angle and firing range had been adjusted after several rounds of gun tests, the Hongyi cannons under the command of Kong Youde and Ma Guangyuan, another veteran traitor who commanded the heavy artillery, were accurate every time, and the hit rate was astonishingly high. All the first round of shells hit the commanding heights on the top of the mountain, where the Ming army's fort and watchtower were located.