Introduction to technological innovation in ancient China: This exhibition area mainly displays the important inventions, creations and technological innovations made by ancient China in the fields of metallurgical mining, agricultural technology, water conservancy machinery, textiles, construction, navigation and other production fields. The main exhibition items include the Tonglushan excavation scene, various agricultural and water conservancy machinery, large water-spinning spinning wheels, large flower building looms, palaces and residential buildings, ancient city planning, ancient advanced navigation technology, etc.