Research on mining industry in Central China during Ming and Qing dynasties 并列题名：Research on mining industry in Central China during Ming and Qing dynasties Research on export porcelain in Ming and Qing dynasties Research on the defense of liaodong county during Qin and Han dynasties Research on the social language life in Ming and Qing dynasties Research on engraving model calligraphy of Yuan, Ming and Qing dynasties Research on literature and culture of the Fan family in Tongzhou during the Ming and Qing Dynasties Research on Huizhou pawn-brokers in Ming and Qing dynasties research on landscape prose in Tang and Song dynasties Research on scholars' making a living in south of the Yangtze River in Ming and Qing dynasties