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简要论述碎磨机械衬板的磨损机理和对制造材质的要求，指出了提高其使用寿命的关键，对如何选择和正确使用耐磨材料提出了一些建议。
The mechanism of abrasion of the mechanical wear of the mechanical wear and tear and the requirements of manufacturing materials are briefly discussed. The key to improve its service life is pointed out. Some suggestions on how to select and use the wear resistant materials are put forward.