After a long period of time to enable the use of geothermal heating system, as well as the first time, strictly in accordance with heating procedures.

长时间后再次启用地热采暖系统时，也要像第一次使用那样，严格按加热程序升温。

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This paper discussed the design criteria of material selection, the area of single unit, flow path, flow rate of a plate heat exchanger (PHE)in a geothermal heating system.

重点分析了板式换热器在地热供暖系统中材料、单片面积、流程、流道、流体流速等选取的原则；在综合考虑技术、经济、环境效益及节能的基础上，论述了对板式换热器优化设计的方法。

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Using a geothermal system, for example, required the well-digger, the heating and cooling specialist and the plumber to work together.

比如说，使用地热系统就要求地热专家和管道工一同协作。

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The former Mary Kay home was redone by the current owner: New flooring, paint, updated kitchen and geothermal system for heating and cooling.

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David Dwyer, the contractor who built the Yerke family's home and installed their geothermal system, says that if you have an old and drafty house you should, before putting in a fancy heating system, put in new windows, seal leaks and add insulation.

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