二十一世纪将是海洋的世纪。随着全球经济的飞速发展,资源供不应求的矛盾日益突出,传统供应工业需要的陆地资源将不能满足需要,世界各国都逐渐 The twenty-first century will be the century of the sea. With the rapid development of the global economy, the contradiction between the supply and demand of resources has become increasingly prominent. The land resources required by the traditional supply industry will not meet the needs and all the countries in the world gradually