1. solid material ejected into the air during a volcanic eruption especially ash entry 2 sense 2b
tephra 片语
片语
fallout tephra空降堆积物
pyroclastic tephra火山碎屑物
tephra fall火山碎屑降落
tephra sequences火山灰层
Tephra cone火山锥
tephra deposits火山碎屑沉积
pozzolana火山灰(等于pozzuolana)
tephra a火山灰
volcanic ash[地质] 火山灰
tephra 例句
英汉例句
new information on the response of vegetation to air-fall volcanic ash is provided by analysis of phytoliths from sediments containing major tephra beds.
含火山灰层沉积的植硅体分析为了解植被对从空中下降的火山灰的反应提供新的信息。
the tephra could not comprise ash layer in the sediments; however, they were dispersed in the same depth of the core, which is located in 27.