在我国加入世界贸易组织、经济全球化和全球产业结构调整转移步伐加快的国内外宏观环境下,我国国民经济和社会发展迎来了重要战略机遇期,进入了以重化工为特征的工业化发展阶段。全国国民经济和对外贸易继续高速发展,2004年全国GDP达到136515亿元,同比增长9.5%,外贸进出口总额 Under the macroscopic environment both at home and abroad that China’s accession to the World Trade Organization, economic globalization and the transfer of global industrial structure have accelerated, China’s national economy and social development have ushered in an important period of strategic opportunities and entered a phase of industrialization featuring heavy chemical industry . The national economy and foreign trade continued their rapid development. In 2004, the national GDP reached 13,651.5 billion yuan, an increase of 9.5% over the same period of last year. The total import and export volume of foreign trade