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2006年4月,美国运输部海事局统计和经济分析办公室公布的资料中,提供了2005年全球港口挂靠1万dwt以上各类海运自航船舶的统计结果。根据美国的统计结果分析,
In April 2006, the statistics released by the Bureau of Metrology and Economic Analysis of the Maritime Bureau of the U.S. Department of Transportation provided statistics on the 2005 global self-propelled vessels with a shipping capacity of over 10,000 dwt. According to the statistics of the United States,