竞技场上留下了深深的车辙泥痕。
泥石流泥痕深度是一个通过勘测调查获取的重要参数，它直接关系到泥石流运动流速、冲击力等特征参数的定量计算。
As an important parameter usually decided by field survey, mud depth of debris flow is directly related to quantitative calculation of velocity and impact forces.
使用泥刀和宽刀，用接缝填料补缝填充连接处，指甲痕，孔洞和裂缝。
Fill joints, nail indentations, holes and cracks with joint compound using trowel and broad knife.
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