id,displayName,friction,frictionMin,frictionMax,behaviorNote
concrete,水泥地,0.3,0.2,0.5,摩擦低滚动均匀距离远走线可预测适合精准操作
dirt,泥土地,0.6,0.4,0.8,摩擦高减速快滚动距离明显短需更大力度到达圈心