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1·Volcanic ash showered down on the town after the eruption.

火山喷发后，小城落了一层火山灰。《牛津词典》

2·A cloud of volcanic ash is spreading across wide areas of the Philippines.

一大片火山灰正在向菲律宾的大块区域扩散。《柯林斯英汉双解大词典》

3·The Romans observed that, when volcanic ash mixes with water and then cools, it gets extremely hard and almost impossible to break up.

罗马人观察到，当火山灰与水混合然后冷却，火山灰变得非常坚硬，几乎不可能分解。

4·On occasion, animals and plants have been preserved after becoming immersed in tar or quicksand, trapped in ice or lava flows, or engulfed by rapid falls of volcanic ash.

有时，动物和植物被浸泡在焦油或流沙中，被困在冰或熔岩流中，或被迅速落下的火山灰吞没后被保存下来。

5·The culprit was volcanic ash from Mount Pelée in Martinique.

罪魁祸首是马提尼克岛培雷火山释放的火山灰。

6·They ignored the erosion of the mountain by the volcanic ash!

他们忽视了山体被火山灰腐蚀的迹象！

7·Neither has been driven by the needs of volcanic ash monitoring.

这两个激光雷达均非出自火山灰监测的需要。

8·Volcanic ash does not mix well with jet engines, hence the disruption.

由于火山灰不能和飞机引擎很好的融合，因此会导致引擎毁损。

9·No one denies that volcanic ash can cause jet engines to fail in flight.

无人否认火山灰能引发喷气发动机在飞行中停机。

10·Flying through a cloud of volcanic ash poses a significant hazard to airlines.

飞过密布火山灰的云层，对航空公司构成了极大的威胁。