Today, copper is still used in Baelz heat exchangers, such as in the district heating network in Paris.

今天，铜仍然是用于Baelz热交换器，如在区供热管网在巴黎举行。

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Heating is expected to be composed of 35 percent solar and 55 percent from heat pump with the rest coming directly from the district heating network.

房间的热量理论上由35%的太阳能，55%的热能泵，剩下的直接来自于区域热能的运作系统。

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Based on analysing Soviet Union's district heating network regulations issued in 1988, the technical measures to increase the reliability of district heating network are presented in this paper.

本文对1988年苏联颁布的热力网规范进行剖析，综合阐述提高热网可靠性的技术措施。

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In icy Tomsk, the potential for heat loss is even worse: astonishingly, the pipes that carry warm water around the district heating network of Seversk and Tomsk are completely uninsulated.

ECONOMIST: The time-bombs of Tomsk