地区供热。热水或冷水输送和分配网路。设计的特殊性。
District heating. hot or cold water transport and distribution networks. particularities of design.
十个著名的城市地区中有六个是位于西海岸，来自太平洋的微风缓解了对于供热以及空调制冷的需求。
Six of the ten most virtuous metropolitan areas are on the west coast, where Pacific breezes lessen demand for heating and air-conditioning.
——北方采暖地区既有居住建筑供热计量及节能改造工作已经启动。
Heat metering and energy efficiency renovations on existing residential heating system in North China.
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