powder ash air-entrained concrete 粉煤灰加气混凝土
ASH-AIR 地区
dry bottom ash air-cooling conveyor 钢带式排渣机
ash pickup air 集尘空气
Ash removal air manifold 清灰空气支管
dry air ash removal 干式气力除灰
The volcano threw new showers of magma and ash into the air.
这座火山向空气中喷发了新的岩浆和火山灰。
The volcano spurted clouds of steam and ash high into the air.
火山把团团热气和灰尘喷向高空。
Ash from the volcano disrupted air traffic in Europe for more than a month.
火山灰使欧洲的空中交通被破坏了长达一个月之久。
Air traffic over much of Europe came to a halt for six days because of the huge cloud of ash from a volcano in Iceland.
VOA: special.2010.04.23
Iceland's volcano erupted Wednesday and has since been spewing ash several miles into the air.
VOA: standard.2010.04.17
The skies above large parts of Europe were empty for a second day Friday, as air safety authorities warned that the cloud of ash from Iceland's volcano is spreading.
VOA: standard.2010.04.16
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