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Ⅰ. GENERAL SITUATION The petrochemical industry is a technology and capital-intensive industry. The United States took the lead in the development of the petro
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Ⅰ. GENERAL SITUATION The petrochemical industry is a technology and capital-intensive industry. The United States took the lead in the development of the petrochemical industry and started launching petrochemical projects in the 1930s and 1940s. The petro
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