用debris flows造句子，“debris flows”造句

Two large-scale debris flows burst out in Chongdui Gully of Nyalam County on May 23 and June 29, 2002, causing tremendous disasters to the hydropower station, the China-Nepal highway, communication establishment, and farming and stockbreeding, and resulting economic loss of above 7.5 million Yuan.

Most debris flows originally occur in the form of rainfall-induced landslides before they move into a valley channel.

Helong City is located to the northeast of the Changbai Mountain with a had geology environment, where debris flows, collapse and landslide always break out.