| 摘要 |
A geothermal system for conditioning air in an enclosed space by transferring heat between the air and a heat exchange liquid which is circulated through a line buried in the earth. The line transfers heat between the earth and the heat exchange liquid circulating through the line. The line is constructed to facilitate the expansion and contraction of the line with changes in temperature and to facilitate the transfer of heat between heat exchange liquid in the line and the earth without causing ice to form around the line.
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