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Book Description paperback. Condition: New. Paperback. Pub Date: 2019-03-01 Pages: 211 Language: Chinese Publisher: Science Press study of the physical environment of stone cave site protection. control and regulation for the protection of cultural relics in the rocky cave cave microenvironment has a very important significance. Dunhuang Mogao Grottoes site exploratory research to protect the physical environment for the Dunhuang Mogao Cave . Seller Inventory # NN031424