西汉时期,随着社会经济的繁荣和发展,水陆交通也获得了较大发展。当时各种工农业产品,比如驰名中外的丝绸就是通过水陆交通运往海内外的。为了适应对外贸易的需要,西汉的造船业首先兴旺起来,如当时的造船中心就多达数十处。汉武帝为了巩固自己的统治地位,就大力发展海上贸易,通过对外交往,扬威海外。他曾下令建立过一支强大的水军。水 During the Western Han Dynasty, with the prosperity and development of social economy, land and water transportation also gained great development. At that time, various kinds of industrial and agricultural products, such as well-known domestic and overseas silk, were transported by sea and land at home and abroad. In order to meet the needs of foreign trade, the shipbuilding industry in the Western Han Dynasty first prospered, such as the shipbuilding center at that time as many as dozens. In order to consolidate its dominance, the Emperor Wu made great efforts to develop maritime trade and promote foreign trade through foreign exchanges. He had ordered the establishment of a powerful navy. water