confluent pitting

例句：

1. 1.The confluent streams of the river have created a picturesque landscape.
   这条河流的汇流创造了一幅美丽的风景画。
2. 2.The confluent flow of water from the mountains has been a source of fresh water for many years.
   从山中涌出的水流是许多年来的淡水来源。
3. 3. Confluent pitting is a common problem in construction projects where large amounts of concrete are used.
   在建筑项目中，大量使用混凝土时，汇流冲蚀是一个常见的问题。