What is the most valuable impression of Zheng He Voyage?

Zheng He's voyages to THE WESTERN SEAS pushed China's ancient navigation to its peak and became the forerunner of the world's great navigation age in the 15th and 16th centuries. Zheng He's voyage to the Western seas was an early, large-scale, advanced, and extensive intercontinental voyage in the ancient history of the world. It was 87 years earlier than Columbus's voyage to the American continent, 92 years earlier than Da Gama's voyage to India around the Cape of Good Hope, and 114 years earlier than Magellan's voyage around the world. During Zheng He's voyages to the Western seas, he was in a leading position in the world in terms of technology and knowledge of ship construction, astronomical navigation, earth navigation, monsoon application and navigation weather prediction. Zheng He's voyages were not only the pinnacle of ancient Chinese navigation, but also a milestone in the development of world navigation industry.