pyroclastic flow meaning in English

火山碎屑流

As bad as the pyroclastic flows are , the ash injected into the atmosphere can have even more far - reaching consequences
如同火山碎屑流般凶恶，喷发进入大气层的火山灰甚至会造成更深远的影响。
As the land above the magma chamber collapses , immense gray clouds called pyroclastic flows burst out horizontally all around the caldera
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。