English Dictionary

pyroclastic flow

noun

(volcanology) A dense flow of volcanic ash, dust, rocks and debris that cascades at high speed down the slope of a volcano during an eruption.

The pyroclastic flow from the volcano destroyed everything in its path.

意味（1）

(volcanology) A dense flow of volcanic ash, dust, rocks and debris that cascades at high speed down the slope of a volcano during an eruption.

In burning slabs like pyroclastic flow the top of the tower slewed off, militia pods falling out and tumbling.