简要介绍了国外太阳能利用情况，指出了国内应用太阳能的研究还有一定的差距。
The utilization of solar energy at abroad is briefly introduced and it is pointed out that there is a gap in research on application of solar energy at home.
在城市住宅建设中积极推广应用太阳能热水器，在村镇住宅建设中推广应用太阳能、沼气等节能技术。
In urban residential construction, actively promote the use of solar water heaters in the villages to promote the use of solar housing construction, gas and other energy-saving technologies.
本研究从应用太阳能的意义，太阳能热水器的原理、类型、利用情况基础上分析了在实际利用中存在的问题。
Basing on study of significance of solar utility, principle and type of solar water heater utility, this paper analyses problems in practical use.
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