介绍了PTA（精对苯二甲酸）的生产工艺和技术进展，分析了国内外PTA的市场供需，并预测了消费的发展趋势。
The paper introduced PTA production process and its technology progress. It also analyzed current situation of PTA production, market and future development at home and abroad.
本文论述了60at轨的全部生产工艺过程，包括冶炼、开坯、轧制、矫直以及精整加工等。
In this paper, the whole process of 60at rail production including steel-making, blooming, rolling, straightening and finishing is described.
文章就香菇精膏、鸡肉精膏的生产工艺及二者的复配调味工艺进行综合论述。
This paper discusses the production process of chicken essence paste, mushroom essence paste and the technics of combine season for the two essence paste.
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