relative roughness factor

例句：

1. 1. The relative roughness of the surface is a critical factor in determining how well it will adhere to other materials.
   表面相对粗糙度是决定其与其他材料附着力的关键因素。
2. 2. In engineering, the relative roughness factor is used to calculate the amount of material that needs to be removed from the surface before the coating can be applied.
   在工程中，相对粗糙度因子用于计算在涂层应用之前需要从表面去除的材料量。
3. 3. The relative roughness factor is an important factor in predicting the performance of the material under different conditions.
   相对粗糙度因子是预测材料在不同条件下性能的重要因素。