北京大钟寺藏永乐大钟是世界古钟中铭文最多的,具有当时世界一流的声学特性、铸造工艺和科学合理的力学悬挂结构。它大约始铸于永乐十六年(1418年)三月,竣工于永乐十八年(1420年)十一月,其铸造地点在德胜门内旧鼓楼大街铸钟胡同附近。明清两朝,它经历了三次搬迁,功能也发生了很大变化。 Beijing Bell Temple Tibetan Yongle clock is the world’s most inscriptions in the ancient bell, with the then world-class acoustic properties, casting technology and scientific and rational mechanical suspension structure. It began about 16 years in Yongle (1418) in March, completed in eighteen years (1420) in November, the casting location in Deshengmen old Drum Tower Street near the bell cast. During the Ming and Qing dynasties, it experienced three relocations and its functions also underwent major changes.