第二次喷发融化了大量的冰川冰,使岩浆冷却碎裂成砂质玻璃微粒,被上升的火山灰柱带走。
The second eruption, however, melted a large amount of glacial ice which then cooled and fragmented lava into gritty glass particles that were carried up with the rising volcanic plume.
虽然其巨大的火山灰柱并非空前绝后,但其位置尤其引人注目,因为它漂浮到了许多人口稠密区。
Although the large ash plume was not unparalleled in its abundance, its location was particularly noticeable because it drifted across such well populated areas.
壮观的火山灰柱直上百米冲入云霄- - -这些让我们瞠目结舌的图片为我们展现了火山的力量和美丽。
As they show spectacular plumes of smoke rocketing hundreds of metres into the sky, these stunning pictures give a unique perspective of the power and beauty of volcanoes.
对于一些适宜的煤种,利用净化能力强、分选效率高的旋流微泡浮选柱可以分选出灰分小于2%的低灰煤。
Low ash coal with an ash content lower than 2% can be separated from some suitable coal with its purification ability and by a high efficient cyclonic microfoam columned pneumatic floatation machine.
卫星提供的更详细的视图,预计将有助于飓风预测,更早预警洪水和更有效地跟踪野火、岩浆柱和火山灰云等。
The detailed view provided by the satellite is expected to sharpen hurricane forecasts, provide more advanced warning of floods and better tracking of wildfires, plumes and volcanic ash clouds.
卫星提供的更详细的视图,预计将有助于飓风预测,更早预警洪水和更有效地跟踪野火、岩浆柱和火山灰云等。
The detailed view provided by the satellite is expected to sharpen hurricane forecasts, provide more advanced warning of floods and better tracking of wildfires, plumes and volcanic ash clouds.
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