杀伤机制：火山灰、火山碎屑流。
火山碎屑流是由火山喷发而引起的最可怕自然灾害。
Pyroclastic flows are some of the most fearsome hazards posed by erupting volcanoes.
笔者对滦平地区火山碎屑流冷却单元进行了深入的研究，划分出12个冷却单元。
The author deeply studied cooling unit of pyroclastic flow in Luanping area and divided the volcanic rock into 12 cooling units.
其中对人类生命财产构成严重威胁的火山灾害有熔岩流、火山碎屑流、火山泥流和火山海啸。
Lava flows, pyroclastic flows, lahars and volcanic tsunamis are the major hazards that threaten the life and property of the people.
然而频繁的火山爆发，伴随着高速流动的火山碎屑流以及火山泥流，已经夺走了许多人的生命。
Many lives have been lost to the volcano's frequent eruptions, which are accompanied by high-speed pyroclastic flows and mudflows called lahars.
当岩浆库上方的陆地崩陷，称为火山碎屑流的巨大灰色云雾，会突然由火山臼的周围向外水平散开。
As the land above the magma chamber collapses, immense gray clouds called pyroclastic flows burst out horizontally all around the caldera.
2010年，印度尼西亚的默拉皮(MountMerapi)火山爆发，火山碎屑流造成了大量的人员伤亡。
More recently, pyroclastic flows from Mount Merapi in Indonesia caused most of the casualties during the volcano's 2010 eruption.
火山似乎在释放出巨大的火山碎屑流(一种热的气体和岩石快速移动的喷流)之前，从开始吐出2米宽度的岩石块而开始爆发。
The eruption seems to have started with the volcano spitting out lumps of rock up to 2 metres across, before releasing an enormous pyroclastic flow - a fast-moving gush of hot gas and rock.
升平气田白垩系营城组火山岩主要为流纹岩、安山岩、玄武岩、霏细岩及火山碎屑岩。
Yingcheng group's volcanic rocks in Shengping gas field are composed of rhyolites, andesites, basalts, felsites and volcanic fragmental rocks.
升平气田白垩系营城组火山岩主要为流纹岩、安山岩、玄武岩、霏细岩及火山碎屑岩。
Yingcheng group's volcanic rocks in Shengping gas field are composed of rhyolites, andesites, basalts, felsites and volcanic fragmental rocks.
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