Objective: To summarize the current situation and progress in diagnostic methods of imaging in pneumoconiosis.
前言：目的：总结尘肺病影像学诊断方法的现状、进展，并进行展望。
This article introduced current situation and progress for research of TCM (traditional Chinese medicine) fingerprint.
介绍了中药指纹图谱的现状和研究进展情况。
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.
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。
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