... mechanized shaft kiln with the pendulum roller 摆辊式机立窑 media grading 研磨介质级配 medial humidity 平均湿度 ...
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grinding media grading 研磨体级配
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Through the analysis on the social background, cultural background and media background of sport media grading, the article points out the problems and challenges sport media grading is facing.
通过对体育媒介分层社会背景、文化背景、媒介背景的分析，指出了体育媒介分层所面临的问题和挑战。
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