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.

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。

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Reduced cost was also instrumental in developing steam-powered rolling mills capable of producing finished iron of various shapes and sizes.

降低的成本也有助于那些能够生产不同形状和尺寸的成品铁制品的蒸汽动力轧钢厂的发展。

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As the cost of energy goes down, he said, people would be more likely to use steam turbines more often.

他说，随着能源成本的下降，人们将更广泛更频繁地使用蒸汽涡轮机。

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Following the invention of the Boulton steam press in 1787 which raised the cost of forgery a British token currency flourished, initially issued by private firms before being nationalised in 1816.

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Tall buildings, walkable neighborhoods, and a good transit system reduce the average cost of face-to-face interaction in exactly the same way that steam ships and low tariffs reduced the average costs of shipping goods to the other side of the world.

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