A series of detonations were set off in a river in Heilongjiang, China, in an effort prevent ice jams, which can be dangerous for nearby residents.
원문출처 : https://www.cnn.com/videos/world/2018/04/09/china-river-blown-up-ice-jams-nr.cnn
원문출처 : https://www.cnn.com/videos/world/2018/04/09/china-river-blown-up-ice-jams-nr.cnn