Heat and electricity are necessary energy forms in building. Therefore, the water heating system and photovoltaic system should be taken into account at the same time in solar building.

热能和电能是建筑必需的能量形式，因此在太阳能建筑中热水和光伏系统应同时考虑。

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The system works by changing excess body heat caught in the station's ventilation system into hot water, which is then pumped into the heating system of the opposite building.

该供暖系统利用火车站的通风系统收集人体多余热量，再将这些热量转换为热水，之后通过管道把热水传送到对面大楼中。

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On the first filling of the hot water heating system or refilling after maintenance, air in the piping and radiation must be removed and the whole system filled with water.

在对热水加热系统进行首次进水或维护后在进水，管道和散热器内的空气必须被排除出来，整个系统必须用水充满。

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The closure is being implemented to allow a disinfection of the water system and a major refurbishment of the heating and water system.

BBC: Bacteria discovery closes Launceston hospital

The 59-acre (24 hectare) site will also boast a solar thermal hot water system to pre-heat the water for the heating system, and a biomass boiler that will provide heat using locally-sourced wood chips.

BBC: Bristol and Bath Science Park gets new solar roof panels

Thursday marked the second time in a month that the reactor has been shut down, following an August 22 leak in a heating system used to pressurize water.

CNN: Pump triggers Three Mile Island reactor shutdown, NRC says