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This is an era of change, with various new technologies and applications emerging one after another, but people's requirements for clean life and lean production of products have never changed. Therefore, the overall market of the purification engineering industry will continue to show a rapid growth trend. As an organic part of the economy, the purification industry will fluctuate with the entire market environment, but as a service-oriented industry that serves advanced technology, its growth rate will be faster than the market growth rate. Purification engineering technology will also continue to improve as the downstream market requirements increase, and grow together with the development of high-tech industries.