The net result is a continuous flow of gas, starting as hot gases in intergalactic space and ending as a drizzle of cool gas called a "cooling flow," falling into the central galaxy.

最终的结果是一股持续的气体流，开始是星系间的热气体，结束时是一股被称为“冷却流”的少量冷气体，落入星系中央。

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Most of the time, air conditioning is done by fat air ducts which gobble both energy and space between floors and ceilings. Here the cooling is done by a cool water system.

在大多数情况下，空调是通过同时吞噬能源和地板和天花板之间的空间的通风管实现的，这里的冷却是由一个水冷却系统。

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In August, the station's cooling pump went on the fritz, spewing ammonia into space.

今年八月，空间站的冷却泵失常，阿摩尼亚气体溢出进入太空。

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The basic concept is the same as that underpinning the "white roads" idea -- the development of a technology that can reflect a proportion of the sun's radiation away from the earth's surface and back out into space, thereby cooling the atmosphere and slowing, or even reversing the damaging effects of global climate change.

CNN: The shield of Ra: Could solar reflection save the planet?

The Zumwalt has the power, cooling, space and weight margin designed to meet the full spectrum of future threats, both known and unknown.

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In fact, even the UN's Intergovernmental Panel on Climate Change acknowledges that pollutant particles reflect sunlight back into space, which has a cooling effect.

FORBES: Fact and Comment