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简介：In fact, as early as the second year of Chongzhen, Xu Guangqi called on the court to build large muskets to fight against the Jianlu. In the eighth year of Chongzhen's reign, Xiong Wencan, the governor of Guangdong and Guangxi, also sent to the capital one hundred heavy matchlock guns purchased to deal with pirates. Because the gun body was very heavy and needed a tripod to support it, it was shaped like a bird's foot, hence the name turtle-dove foot gun.