The wheel-shaped skates of the ice skates and the shoe body form a dismountable connection, and the shoe body is matched with the sliding wheels of the existing used roller-skating.
2
同现代冰鞋上的冰刀比起来，由于残留着油脂，马骨的摩擦力更小些。
The bones have very low friction compared to modern metal blades because of the residual fat on the bones.
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