蒸汽速度越高，汽轮机转得越快。 。
Thee higher the velocity of steam, the greater (is) the turbine speed.
蒸汽的高成本、加上货运对速度的低需求，使得世界上大多数的海运货物都是通过帆船来运输的，直到20世纪初，这一状况才有所改变。
The high cost of steam and the lesser need for speed kept the majority of the world's ocean freight moving by sail until the early years of the 20th century.
她的兴奋像蒸汽一样推动着她向前，她以惊人的速度飞快往下跑。
Like steam her excitement seemed to drive her forward, and she ran down at a tremendous rate.
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