translation.en: We used both of these at the Oso mudslides up in Washington State, because the big problem was geospatial and hydrological understanding of the disaster -- not the search and rescue.
translation.zh: 我们在华盛顿州的奥索泥石流灾害 中用到了这两种无人机， 因为难点在于 了解灾害的地理和水文性质， 而不是搜寻和救援。