但这团雾气的的确确是由美国海军从秘鲁海岸起飞的超级大黄蜂所制造出来的，即一般所谓的“冲击领”或“蒸汽锥”，在某些大气条件下飞机在高速飞行时就会产生这种现象。
But this cloud created by a U.S. Navy Super Hornet off the Peruvian coast is known as a 'shock collar' or 'vapour cone', created in certain atmospheric conditions at high speeds.
冰岛的国土一直处于地质活跃中。从雷克雅未克乘飞机飞行一个小时，途中尽是冒着蒸汽的地热区、巨大的地壳裂缝以及岛国最著名的几座火山。
Iceland is geology in action. A one-hour flight from Reykjavik skims over steaming geothermal areas, the great crustal rift and some of the country's most famous volcanoes.
蒸汽和火山灰从火山喷气口涌出时发出飞机发动机样的（巨大）噪音，人们在数公里之外都能听见。
The “jet-type noise” of gas and ash rushing out of fumaroles was heard several kilometers away.
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