英语词汇“pyroclastic flow”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	pyroclastic flow
释义	pyroclastic flow noun Geology A dense, destructive mass of very hot ash, lava fragments, and gases ejected explosively from a volcano and typically flowing at great speed.They may be buried in place by inundation of sediment or even by lavas or pyroclastic flows.... The eruption has been characterized by lava dome extrusion, dome-collapse pyroclastic flows and explosive activity. Even scarier and more destructive than volcanic mudflows are pyroclastic flows or glowing avalanches.
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