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　　According to the knowledge sharing agreement, the author retains the copyright of the article published in "Clean Coal Technology" and allows unrestricted use, distribution, and reproduction with appropriate citations.

      1. License Agreement

      The author grants the publisher permission to publish the article and acknowledges the editorial department of Clean Coal Technology as the original publisher.

      The author authorizes third-party users to copy, publish, exhibit, perform, play, broadcast, or promote articles published in Clean Coal Technology through an information network under a BY-NC-ND type knowledge sharing license ("CC BY-NC-ND License").

      2. Knowledge Sharing Agreement

     When submitting articles to the journal through its official website, the author signs a CC BY-NC-ND license agreement with the journal. If the article is rejected after review, the knowledge sharing agreement will automatically terminate. Otherwise, the knowledge sharing agreement shall come into effect immediately, and all authors agree to the statements and agreements contained therein