The system produces most of its hot water, but if more is needed, or if the temperature is not high enough, the house has a supplemental, solar-powered water heater.
该系统产生的热水大多数，但如果有更多的需要，或者如果温度不够高，房子有一个补充，太阳能热水器。
The system produces most of its hot water, but if more is needed, or if the temperature is not high enough, the house has a supplemental, solar-powered water heater.
该系统产生的热水大多数，但如果有更多的需要，或者如果温度不够高，房子有一个补充，太阳能热水器。
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