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近几年来,国外空调设备方面的发展是围绕节约能源及取代燃料能源这个中心课题。利用太阳能为建筑物供暖供冷的研究工作发展很快,方式亦十分繁多。许多国家已出现了太阳能工业这种新兴部门,不少太阳能利用设备已商品化。国际及地区性的学术、展览、协作等交流活动频繁,早在1956年就成立了国际太阳能学会,不少国家设有分会,每两年召开一次全会。不少国家每年都拨出巨款资助太阳能利用的研究。
In recent years, the development of foreign air-conditioning equipment is centered on the topic of saving energy and replacing fuel energy. Research on the use of solar energy for heating and cooling buildings has developed rapidly and in many ways. Many countries have emerged in this emerging sector of the solar energy industry, and many solar energy utilization devices have been commercialized. International and regional academic exchanges, exhibitions, collaborations and other exchange activities are frequent. As early as 1956, the International Solar Energy Society was established. Many countries have branches and convene once every two years. Many countries allocate large sums of money each year to fund research on solar energy utilization.