The upper slope was characterized by all kinds of sliding sediments and lower slope by all kinds of debris flow sediments. 其中，上斜坡以各種規模的滑動沈積為特色，下料坡以不同性質的碎屑流沈積為特徵。
As bad as the pyroclastic flows are, the ash injected into the atmosphere can have even more far-reaching consequences. 如同火山碎屑流般兇惡，噴發進入大氣層的火山灰甚至會造成更深遠的影響。
Those pyroclastic flows are very hot and very fast. 那些火山灰流非常燙，速度也非常快。
Whole towns have been wiped out by poisonous gases from volcanoes even before they were hit with pyroclastic flows or lava. 在整個村莊遭到火山灰流或熔岩的襲擊之前，為了躲避來自火山的有毒氣體，人們已經筋疲力盡。
