The index system of debris flow risk evaluation is improved and some advice on the debris flow disaster evaluation in the future is given.
改进了泥石流风险评价指标体系，提出了对今后泥石流灾害评价的建议。
2
Regional grade of debris flow risk is chosen as the synthetic index for the risk zonation and the method for risk grading is also given here.
提出了把区域泥石流风险度作为泥石流风险区划的综合性指标，并给出了风险等级的划分方法。
3
The wear of aluminum surface after rolling is an important index for rolling of aluminum. Aluminum debris generated in rolling deteriorated the product quality and lower the rolling efficiency.