The steam-powered printing press was still in its early stages.

蒸汽印刷机仍处于起步阶段。

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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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The steam-powered trawler came next, in 1881.

接着蒸汽拖网渔船在1881年出现。

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At first,the steam-powered drill worked two times faster than he did.

VOA: special.2009.02.21

In 1974, Evel Knievel tried to jump over the Snake River canyon in a steam-powered rocket.

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We saw this same thing happen in the 19th century with the invention of steam-powered ships.

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Mechanical looms, steam- powered locomotives, gasoline engines, electric motors ? none had an instant effect on productivity.

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