主席先生,非常感谢您邀请我在第二届昆明郑和研究国际学术会议上致辞。根据历史记载,郑和,这位中国明代著名的航海家,在15世纪中叶发现了世界的很多“新大陆”。他率领了7次伟大的航行,访问了东南亚、非洲和阿拉伯的37个国家。这些史诗式的远航标志着中国曾经在航海科学发 Thank you, Mr. President, for inviting me to address the second international conference of Zheng He Research in Kunming. According to historical records, Zheng He, the famous Chinese navigator in the Ming Dynasty, discovered many “new continents” in the world by the mid-15th century. He led seven great voyages to 37 countries in Southeast Asia, Africa and Arabia. These epic voyages mark China’s once-scientific maritime science