这个过程可以在埃亚非德拉火山记录片中看到：冲击波在在浓烟中扩散，携带着黑暗的火山灰云进入大气层。

This process can be seen in a movie of the Eyjafjallajokull volcano where the shock waves propagating in the smoke are followed by the rise of dark ash clouds into the atmosphere.

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在埃亚非德拉火山爆发中，热气团冲破熔岩表面，产生的冲击波可以穿破灰色的火山灰烟尘。

With Eyjafjallajokull, pockets of hot gas blasted through the surface of the lava, generating shock waves that can be seen passing through the grey smoke of the volcano.

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根据目前的形式，经济学家们——如来自咨询公司普华永道会计师事务所的埃斯蒙德·波尼——预计经济增长顶多也就是疲软式的。

On current form, economists such as Esmond Birnie of PricewaterhouseCoopers, a consulting firm, expect lacklustre economic growth at best.

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