For systems transforming solar to thermal energy, the thermal energy may be stored in matter as either latent heat or sensible heat.
2
消极供暖房屋将太阳能转化为热能的原理与封闭的汽车一样：阳光穿过窗户然后被墙壁和地面所吸收。
A passive solar home converts solar energy into heat just as a closed car does. Sunlight passes through a home's Windows and is absorbed in the walls and floors.
3
太阳能热水器是将太阳光能转化为热能，将水从低温加热到高温度，以满足人们在生活和生产中的热水需求。
Solar water heater converts solar light energy into thermal energy and heats water from low temperature to high temperature so as to meet needs for hot water from peoples' life and production.
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