什么叫推波倍投

简介：On the sixth day of May, the Shenji Battalion, which was originally undergoing field training in Xishan, moved to the campus and conducted a coordinated combat exercise of infantry artillery, cavalry artillery, and infantry and cavalry artillery with the 3,000 Battalion of the Jingwu Battalion and the Wuxiang Zuowei. Ten small bronze cannons were placed directly in front of the infantry formation, and without protection, they fired fiercely at the enemy formation on the opposite side.