The experimental tests show that the friction between cartilages in normal animal joints is very low and its coefficient of friction is in the range 0.002 to 0.02.
实验测定表明，正常动物关节内关节软骨之间的摩擦力是非常小的，其摩擦系数大约为0.002～0.02的范围。
The experimental tests show that the friction between cartilages in normal animal joints is very low and its coefficient of friction is in the range 0.002 to 0.02.
实验测定表明，正常动物关节内关节软骨之间的摩擦力是非常小的，其摩擦系数大约为0.002～0.02的范围。
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