由于蒸汽机是靠燃煤来驱动的，因此一些大型棉纺织厂就不再像那些使用水力驱动机器的工厂一样，必须依河而建。

Since the steam engine was fired by coal, the large mills did not need to be located by rivers, as had mills that used water-driven machines.

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他写了一篇关于参观棉纺织厂的有价值的论文。

He wrote a meritorious theme about his visit to the cotton mill.

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北京第三棉纺织厂研制成此系统后，使气流纺纱机的生产效率提高了4%左右。

The use of this monitor system in the Beijing Cotton spinning and Weaving Mill No. 3, has raised the efficiency of OE spinning by 4%.

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