according series of test, study the different hardness lining friction coefficient in different stress & sliding speed, and which kind of factor effecting friction coefficients is comparatively more.
通过一系列的试验,研究不同硬度的衬垫在不同的比压、滑速下衬垫摩擦系数的情况,并比较哪种因素对摩擦系数的影响更多。