This is what is called a closed cooling system.

这也叫做封闭式的制冷系统。

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Closed cooling tower cools the required liquid according to the principle that water evaporation can absorb heat energy.

闭式冷却塔利用水蒸发时吸收热量的原理而使被冷却液体冷却。

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This article introduces the ways of leak detection and equipments for closed cooling system with soft water for BF and the flow characteristics of the cooling system.

本文介绍了高炉软水密闭循环冷却系统泄漏监测方法和设备，以及软水密闭循环冷却系统水流特性。

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Musegaas believes Indian Point will have to either shut down or switch to closed-cycle cooling, which Entergy is challenging.

WSJ: Feds: Relatively few fish die if NY nukes continue

New York state is currently insisting that Indian Point switch to closed-cycle cooling, which uses much less water and is safer for fish.

WSJ: Feds: Relatively few fish die if NY nukes continue