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It was about three times as efficient as Newcomen's engine.
它的功率是纽科门发动机的3倍.
英汉非文学 - 科学史
A safer and better steam engine for pumping water was developed by Newcomen in 1712.
1712年,纽科门研制出一种更好、更安全的用来抽水的蒸汽发动机.
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