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.
寻找适合进行人工干预的气象条件，然后喷洒化学药品，大约需要出动8至10架飞机。 大气中并非所有的水蒸汽都能转化为降雨，至于降雪，水蒸汽首先应该形成冰晶。
Not all water vapour in the atmosphere turns to precipitation, and for the snow to fall, water vapour should concentrate on ice crystals first.
大型零件通常是指那些在各个维度的尺寸超过一米的零件，比如蒸汽轮机的低压缸体，飞机的机翼壁板以及一些专用零件。
Large size parts generally refer to those parts with more than one meter long in each dimension, such as low-pressure cylinder of steam turbine, wing panel of plane and so on.
那道蒸汽轨迹是广播公司的直升飞机在离洛杉矶不远，加利福尼亚南部拍摄到的，有人说，那道轨迹似乎像来自于一个垂直飞向天空的导弹。
The vapour trail, which some said appeared to be coming from a missile moving vertically into the sky, was filmed by the news helicopter near Los Angeles, in southern California.
那道蒸汽轨迹是广播公司的直升飞机在离洛杉矶不远，加利福尼亚南部拍摄到的，有人说，那道轨迹似乎像来自于一个垂直飞向天空的导弹。
The vapour trail, which some said appeared to be coming from a missile moving vertically into the sky, was filmed by the news helicopter near Los Angeles, in southern California.
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