青年中文tephra的意思
tephra中文翻譯：
n.火山灰，火山碎屑
my step mom───我的繼母
step down───辭職；走下；逐步減低；退休，辭職
initial steps───初始步驟
clinch mountain backstep───克林奇山后臺階
steped to───單步執行到
feminizing men step by step guide───女性化男人一步一步指南
step inside───走進里面；進入; 插腳
single step───n.單步執行
first steps───第一步，首要步驟；[電影]第一步
ratiocination steps───推理步驟
Mustafar's skies are obscured by choking black clouds of ash, smoke and tephra.───穆斯塔法的天空彌漫著令人窒息的黑云，其主要成分為灰燼、煙霧與火山灰。
The ledge was covered with heavy ash, called tephra, and speckled with droplets of volcanic glass and delicate lava threads known as Pele's hair.───巖架上覆蓋了厚厚的火山灰燼，其間點綴著火山玻璃珠和被稱之為火山毛(Pele ' s hair)的熔巖細線。
Tephra is any fragmented material produced by a volcanic eruption, be it ash or rock.───灰燼還是巖石，所有因火山爆發而形成的碎片狀物質都稱作火山灰。
Explosive eruptions produce a mixture of volcanic ash and other fragments called tephra , rather than lava flows.───爆炸性噴發產生的混合火山灰和其他碎片所謂火山灰，而不是熔巖流。
Black columns of the particles of ash and cinder that scientists call tephra rose hundreds of feet.───由火山灰和火山巖燼的微粒——科學們稱之為火山碎屑——形成的黑煙柱沖向數百英尺的高空。
Tephra is any fragmented material produced by a volcanic eruption, be it ash or rock.───無論是灰燼還是巖石，所有因火山爆發而形成的碎片狀物質都稱作火山灰。
Holocene Tephra Deposits in the Northern Okinawa Trough───沖繩海槽北部的全新世火山碎屑沉積
Major volcanic eruptions also project significant quantities of tephra into the earth's upper atmosphere, with global effects.
Around the same time, a massive volcanic eruption in the Wrangell Mountains in Alaska occurred, blanketing the area in a layer of ash, up to a foot deep, called the White River tephra.
The ledge was covered with heavy ash, called tephra, and speckled with droplets of volcanic glass and delicate lava threads known as Pele's hair.
A shower of tephra, stones and lapillus rained down and lasted 8 days and nights.
Significant changes in phytolith assemblages occur at the same depth as four major tephra. indicating a sharp decline in trees and shrubs and a surge in grass and Cyperaceae.