debris flow erosion

例句：

1. 1. The debris flow in the mountain area is a major concern for environmental protection.
   山区的残骸流是环境保护的一个主要关注点。
2. 2. The debris flow caused significant damage to the infrastructure during the flood event.
   洪水事件中的残骸流对基础设施造成了重大损害。
3. 3. The debris flow erosion has been identified as a significant threat to the ecological balance of the region.
   残骸流侵蚀已被确认为该地区生态平衡的一个重要威胁。