汤世芬 本书涵盖"上博讲坛"第四季讲座全部内容，本季开篇就带领观众走入文物保护与文物修复的世界，走进 非物质文化遗产代表性传承人的日常工作，同时跟随着专家以一个个全新的视角了解文物以及背后的密 码信息。沿袭四千年的传统陶范铸造技艺蕴含着怎样的科学技术？作为中国华南区域非常重要的物质文 化制品——铜鼓，如何阐释其背后蕴藏的文化实践和文化逻辑？上博对于书画文物保护修复是如何将传 统技艺与现代科技相融合的？从赵孟頫致吴氏札，我们又能窥见怎样的文人交游与人文活动？通过十数 本传世《搜山图》，我们可以挖掘出怎样的历史信息？中国传统失蜡铸造技艺有什么工艺原理和奥秘， 经现代科技改造后又如何被广泛运用？为什么印叫印，不同玺印的自名背后藏着怎样的政治、经济、文 化密码？通过挖掘陶瓷上的生动形象与丰富信息，我们又将见到怎样的唐代生活？走进书画修复师和陶 瓷修复师的日常，看看修复师是如何开展工作，并不断实践和创新的？本季"上博讲坛"，内容博专兼 顾，引人入胜，相信朋友们一定能在这里寻找到与千年文明对话的契机，在历史的长河里寻得精神的故 乡。 "上博讲坛"已迈入精彩的第五季，这一路的成长与蜕变，离不开广大观众朋友的厚爱与同行。你们 ...

Core Viewpoint - The article discusses the historical significance and restoration efforts of the Tianti Mountain Grottoes, particularly focusing on the Great Buddha Cave, which has faced challenges due to water damage and historical alterations [1][6][21]. Group 1: Historical Significance - The Tianti Mountain Grottoes are recognized as the first royal grottoes in China, directly commissioned by a king during the Northern Liang period, showcasing early grotto art [2][3]. - The site contains over a hundred statues and hundreds of square meters of murals, along with valuable texts and artifacts from various dynasties [2][3]. Group 2: Relocation and Preservation Efforts - In 1958, the local government decided to build a reservoir, threatening to submerge the grottoes, leading to a large-scale relocation effort approved by the Gansu provincial government [4][6]. - The relocation involved moving 43 statues and 300 square meters of murals to the Gansu Museum, while the Great Buddha Cave was left in situ due to the size of its sculptures [4][6]. Group 3: Restoration Challenges - The Great Buddha Cave's sculptures suffered significant water damage, with parts submerged for over 30 years, leading to erosion and loss of structural integrity [6][21]. - Restoration efforts began in 1995, utilizing modern materials while adhering to the principle of "repairing the old as the old" despite limited historical references [19][21]. Group 4: Restoration Techniques - The restoration team, led by Li Yunhe, employed innovative techniques, including the use of steel reinforcements for the sculptures' frameworks, replacing the original wooden structures [15][19]. - The team faced the challenge of reconstructing the Buddha's head using only black-and-white photographs from the 1950s, which required significant scaling and artistic interpretation [13][14]. Group 5: Legacy and Impact - Li Yunhe's dedication to the restoration of the Tianti Mountain Grottoes has inspired a new generation of conservators, with his family continuing the tradition of cultural heritage preservation [21][23]. - The successful restoration of the Great Buddha Cave has garnered praise from experts and the public, highlighting the importance of cultural heritage conservation in China [21].

Core Points - The Notre-Dame Cathedral's towers have reopened to the public after six years of restoration following a devastating fire [1][8] - The restoration emphasizes a balance between modern safety features and historical preservation, showcasing craftsmanship and attention to detail [4][5][7] Restoration Details - The original stone staircases have been replaced with new wooden ones designed in a double-spiral pattern for safety and comfort [4] - The restoration adhered to the principle of "repairing old as old," with ancient wooden beams being marked and replaced where necessary [5] - The bell tower houses a 13-ton bell from the 17th century, which survived the fire, and its supporting wooden structure has been restored [6] - The roof, referred to as the "forest," was completely destroyed in the fire and has been reconstructed using over 1,200 oak trees, highlighting the complexity and artistry of the restoration [7] Cultural Significance - The reopening of the towers allows visitors to experience the historical and literary significance of the cathedral, as it intertwines history with contemporary restoration efforts [6][8] - The restoration serves as a valuable case study for global heritage conservation and restoration practices [8]

Group 1 - The article highlights the importance of cultural heritage preservation and restoration in China, emphasizing the need for skilled professionals in this field [3][9] - The 2025 National Cultural Heritage Vocational Skills Competition will be held in Luzhou, Sichuan, showcasing craftsmanship and skills among participants from across the country [3][5] - The competition features a diverse range of participants, with an average age of 40.5 years, including the youngest contestant at 19 years old, indicating a multi-generational approach to skill development [5][9] Group 2 - Over the past two years, approximately 200 cultural heritage restoration workers have successfully restored over 4,000 artifacts from the Sanxingdui site, demonstrating significant progress in the field [7] - The competition has attracted a high percentage of well-educated participants, with over 53% holding a bachelor's degree or higher, including 45 master's degree holders and 1 doctoral candidate [9] - The application of new technologies and materials in cultural heritage preservation is enhancing efficiency and effectiveness, allowing for minimal intervention and restoration that maintains historical integrity [22][23]