The supply & demand status and development trends of polyester and PX are analyzed.
分析了近年来国内外聚酯和对二甲苯的供需状况及未来需求发展趋势；
The article introduces supply & demand status and market prospect of vinyl acetate both home and abroad and puts forward several considerations about its unit construction.
介绍了国内外醋酸乙烯供需现状和市场前景，提出了关于醋酸乙烯装置建设的几点思考。
The application status supply and demand analysis and application perspective of rare metals in battery industry were outlined.
本文论述了稀有金属在电池工业中的应用现状、供需分析及应用前景。
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