求翻译：郑和下西洋时，中国的造船技术是世界一流的，但几千人的船队七下西洋，不过为了宣示明王朝的“富有与强大”。当麦哲伦的船队环游世界时, 当西方人使用中国发明的指南针、火药入侵我们时，我们想到的竟然是在大海边再造一处万里长城，思维的守旧，缺乏创新和探险精神由此可见一斑。是什么意思？

Zheng He, China's shipbuilding technology is world class, but a fleet of thousands of people seven voyages, the Ming dynasty, but to declare the "rich and powerful." When Magellan's fleet around the world, when Westerners use the Chinese invented the compass, gunpowder invade us, we think of the sea

正在翻译，请等待...

Under when Zheng He Western world, China's Marine Technology is the world first-class, but several thousand human of fleet seven Western world, but in order to declare the Ming Dynasty “is rich and is formidable”.When Magellan's fleet visits the world, when the westerner uses which China to invent t

When Zheng He, China is the world's leading shipbuilding technology, but thousands of fleets of seven voyages, but in order to declare of the Ming dynasty "rich and powerful". When Magellan's fleet around the world, when Westerners used Chinese invention of the compass, gunpowder invaded us, turned

正在翻译，请等待...