中国科学家正在保存赫兰山的20,000个古老岩石雕刻,将旅游业与保护结合起来。 Scientists in China are preserving 20,000 ancient rock carvings in Helan Mountain, combining tourism with protection.

中国的研究人员正在努力保存赫兰山的20,000多个古老的岩石雕刻物,这些雕刻可追溯到10,000至3,000年。 Researchers in China are working to preserve over 20,000 ancient rock carvings in Helan Mountain, dating back 10,000 to 3,000 years. 这些雕刻描绘了自然图像、人类面孔、动物和古代生活景象。 The carvings depict natural images, human faces, animals, and ancient life scenes. 保护工作包括实地调查、建造防洪大坝和防护栅栏,以平衡旅游业和保护这些国家文化遗产遗址。 Preservation efforts include field surveys, constructing flood-prevention dams, and protective fencing to balance tourism with protecting these national cultural heritage sites.