Particularly useful to boiling-water reactors is a system that is steam driven.

对沸水堆特别有用的是一个由蒸汽驱动的系统。

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Compressed air actual if keep steam condition, won't cause system problems, if want to remove all of the water vapor in the compressed air is not only very expensive, and it is unrealistic.

压缩空气中的水气如果一直保持蒸气状态，就不会造成系统问题，若要驱除压缩空气中的所有水蒸气不仅十分昂贵，而且是不切实际的。

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With the renovation of liquid level control and water supplement system, combined with steam heat recovery and condensed water reutilization, energy consumption in hotel is reduced.

通过对液位控制和补水系统进行改造，配合余热利用和冷凝水回收，达到节能目的。

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The gravity-based system responded as it was designed to, circulating water and steam in a continuous loop to keep the scale-model reactor at a safe temperature automatically.

CNN: Today/Tomorrow - Helping nuclear plants keep their cool