若摩擦系数真的，与接触面积没有关系，那么两者下滑时的角度，应该基本相当。
If indeed the friction coefficient is independent of surface area, then when I tilt them they should start to slide roughly at the same Angle.
应用统计学方法对静态接触面积与动态摩擦力进行了相关分析，结果表明二者具有显著水平的线性相关关系。
Statistic method is used to analyze the correlation between static contact area and dynamic friction force. The results clarify that there is a linear correlation with significant level.
此外还分析了磨砂玻璃板接触面积与摩擦系数的关系。
Besides, the relationship between the contacting area and the glide friction was analyzed and discussed.
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