document.writeln('5月7日华东PTA现货价格企稳窄幅走高');document.writeln('涤短报价基本维稳产销尚可');document.writeln('成本端利空聚酯链跌幅居前');document.writeln('期市午盘收盘郑棉跌0.92% 棉纱跌0.85% 短纤跌0.35%');