By glassy, the eruptioncloud that coarse rock particle forms jams not only engine, still can wear away windshield, attaint plane navigation and communication system.
由玻璃质的、粗糙的岩石微粒构成的火山灰云不仅堵塞发动机，还会磨损挡风玻璃，损坏飞机导航与通讯系统。
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Last year, another Icelandic eruption, of the volcano Eyjafjallajokull, attracted worldwide attention after its ash cloud disrupted air travel across Europe.
去年，艾雅法拉火山喷发的火山灰曾经使欧洲的航空陷入瘫痪，引起了世界的广泛关注。
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Ash particles from the early part of the eruption were especially sharp and abrasive, posing a possible threat to aircraft flying through the cloud.