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从理论上确定了磨球的冲击特性，并对各种材料冲击破损模拟试验方法作了评述，为磨球和衬板的选材提供了新的理论依据。
The impact characteristics of the balls were theoretically determined, and the simulation test methods of various kinds of materials for impact damage were reviewed, which provided a new theoretical basis for the selection of balls and linings.