山泥倾泻产生的泥石体积是1980年5月18日圣海伦山岩屑崩落的1000多倍。
The volume of the landslide debris is more than 1, 000 times greater than that from the May 18, 1980, debris avalanche from Mount St. Helens.
山泥倾泻产生的泥石体积是 1980 年 5 月 18 日圣海伦山岩屑崩落的 1000多倍。
The volume of the landslide debris is more than 1,000 times greater than that from the May 18, 1980, debris avalanche from Mount St. Helens.
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