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词汇 Glowing Cloud
分类 英语词汇 英语翻译词典
释义

Glowing Cloud

原声例句
三体 I

Then she saw a terrifying scene: One flock of birds flew into the region of air the antenna pointed at, and against the background of the faintly glowing cloud, the birds dropped out of the sky.

紧接着， 她看到了可怕的一幕：一群鸟儿飞入了天线所指的空域，在微光云彩的衬托下，鸟儿们从天而降。

英语百科

Pyroclastic flow

Pyroclastic flows sweep down the flanks of Mayon Volcano, Philippines, in 1984
Rocks from the Bishop tuff, uncompressed with pumice (on left); compressed with fiamme (on right).
A scientist examines pumice blocks at the edge of a pyroclastic flow deposit from Mount St. Helens

A pyroclastic flow (also known scientifically as a pyroclastic density current) is a fast-moving current of hot gas and rock (collectively known as tephra), which reaches speeds moving away from a volcano of up to 700 km/h (450 mph). The gas can reach temperatures of about 1,000 °C (1,830 °F). Pyroclastic flows normally hug the ground and travel downhill, or spread laterally under gravity. Their speed depends upon the density of the current, the volcanic output rate, and the gradient of the slope. They are a common and devastating result of certain explosive volcanic eruptions.
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