Research on Huizhou pawn-brokers in Ming and Qing dynasties 并列题名：Research on Huizhou pawn-brokers in Ming and Qing dynasties research on landscape prose in Tang and Song dynasties Research on export porcelain in Ming and Qing dynasties Research on the social language life in Ming and Qing dynasties 并列题名：Research on export porcelain in Ming and Qing dynasties Research on engraving model calligraphy of Yuan, Ming and Qing dynasties Research on mining industry in Central China during Ming and Qing dynasties Blue and white porcelain of ming and qing dynasties 并列题名：Research on engraving model calligraphy of Yuan, Ming and Qing dynasties