Gibson says it's not cheap to build all of the pipes and pumps for a district cooling system, but it saves money in the long run, especially if existing underground infrastructure can be used.

吉布森说，建立一个区域的冷却系统，所有的管道和泵站并不便宜，但从长远来看，它可以节省钱，特别是当现有的地下基础设施可以被利用的话。

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The effective mine cooling measures are pointed out according to the mining method, stoping sequence and underground equipments.

并从采矿方法、 矿床回采顺序、井下设备选择等多方面提出了矿井降温的有效措施。

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The principles of the cooling system are demonstarted through analysis and testing, and designs are made for the underground pool.

文中分析了冷却水作冷媒向地下冷源放热的理论依据和数学模型，提供了地冷制冷系统的设计方法。

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After this, excavation work can start to lay the foundations of the nuclear plant including two underground 3km tunnels for the cooling water.

BBC: New nuclear power plant at Hinkley Point C is approved

It requires no active cooling system and can be installed anywhere on earth, even an underground vault.

FORBES: UK Parliament Group to Study Thorium Reactors