Made by rubber, effervesce layer to reduce the fatigue of the foot and legs.
采用橡胶制成，底部为发泡层，从而可减少脚步及腿部疲劳。
Rubber products often endure cyclic stress state in service, the fatigue characterization of rubber materials often determines products service life.
橡胶制品通常是在周期性应力状态下使用的，材料的疲劳断裂性能往往决定这些制品的使用寿命。
The situation of crack growth for a real component, rubber pad used in turck, during fatigue testing were explained.
并用有限元分析结果解释了一个实际产品——卡车用橡胶垫在疲劳实验过程中裂纹扩展的情况。
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