1.【地】火山灰,火山碎屑
1.solid material ejected explosively from a volcano, e.g. ash, dust, and boulders
1.Explosive eruptions produce a mixture of volcanic ash and other fragments called tephra , rather than lava flows.
爆炸性喷发产生的混合火山灰和其他碎片所谓火山灰，而不是熔岩流。
2.Black columns of the particles of ash and cinder that scientists call tephra rose hundreds of feet.
由火山灰和火山岩烬的微粒——科学们称之为火山碎屑——形成的黑烟柱冲向数百英尺的高空。
3.Tephra is any fragmented material produced by a volcanic eruption, be it ash or rock.
无论是灰烬还是岩石，所有因火山爆发而形成的碎片状物质都称作火山灰。
4.Mustafar's skies are obscured by choking black clouds of ash, smoke and tephra.
穆斯塔法的天空弥漫着令人窒息的黑云，其主要成分为灰烬、烟雾与火山灰。
5.Holocene Tephra Deposits in the Northern Okinawa Trough
冲绳海槽北部的全新世火山碎屑沉积