eruptions

That led Arizona State University geologist Mark Robinson to speculate that the mineral is important but still unknown stuff ejected from Mercury's large core in the volcanic eruptions.

亚利桑那州立大学地理学家马克·罗宾逊推测这种成份未知但又很重要的物质是在火山爆发时从水星巨大的核心喷发出来的。

According to the observation of seismic-electrical abnormal signals in the past more than ten years, I determine the object of this thesis is the study on the correlativity between seismic-electrical abnormal signals and volcanic eruptions.

本文正是从这个大的思维视角出发，以北京工业大学地震预报研究室多年的地电资料为依据，确定本次论文的主要研究内容为地电异常信号与火山喷发相关性的研究。

the volcanic eruptions last month, airlines grounded their planes for fear the ash could jet engines and make flying unsafe.

在上月火山喷发的高峰期，航空公司因担心火山灰进入飞机引擎导致飞行危险而停开航班。