volcanic ash 火山灰
volcanic ash
繁：火山灰
简：火山灰
火山灰會對噴射發動機造成損害，甚至導致停止運作。阿拉斯加西南部火山灰雲高達2萬呎(約6096公尺)以上時，恐會威脅北美和亞洲之間的航班。
阿拉斯加火山噴發 灰雲恐威脅來往亞洲航班（2017年5月29日）。信報財經新聞，取自 http://www2.hkej.com/instantnews/current/article/1573890
The volcano sits under the flight path of many flights from Asia to North America and its ash cloud could adversely affect aircraft. “Ash and aircraft do not mix, as volcanic ash is abrasive, melts at jet engine temperatures, and can cause engine failure,” according to the United States Geological Survey.
Highest aviation alert level issued after Alaskan volcano erupts. (2017, May 30). CNN. Retrieved from http://edition.cnn.com/2017/05/29/us/alaska-bogoslof-volcano-eruption/index.html