The eruption seems to have started with the volcano spitting out lumps of rock up to 2 metres across, before releasing an enormous pyroclastic flow - a fast-moving gush of hot gas and rock.
火山似乎在释放出巨大的火山碎屑流(一种热的气体和岩石快速移动的喷流)之前，从开始吐出2米宽度的岩石块而开始爆发。
To grasp the coal seam gas control content and gas gush rules can efficiently stop gas, avoid gas accident and accumulate gas preventive measures.
掌握各煤层瓦斯含量及瓦斯涌出规律，为有效地采取可靠措施进行瓦斯治理积累了经验，对保证生产杜绝瓦斯事故起到了积极的作用。
The theory of gas geology is applied to study the problem of gas unusual gush at first, and set-ting up systematic research thinking and method of gas geology in the low gas mines.
首次运用瓦斯地质理论研究低瓦斯矿井瓦斯异常涌出问题，形成了系统的低瓦斯矿井瓦斯地质规律的研究思路和方法。
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