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(上接2016年第6期第45页)第16讲在经历了一个世纪只因为收入限制消费的生活后,我们现在终于明白地球的资源是有限的,因此,这样的生活应该结束了。如果我们和生活在发展中国家的数以亿计的人想要过稳定和安全的生活,我们必须学会降低生活消耗。地热资源供热泵
(Continued on page 6, 2016, p. 45) Lecture 16 After a century of living solely because of income restrictions, we now finally understand that Earth’s resources are limited and that such a life should come to an end. If we and hundreds of millions of people living in developing countries want a stable and secure life, we must learn to reduce the cost of living. Geothermal resources for heat pumps