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空調系統(tǒng)圖解各項設備上課講義

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空調系統(tǒng)圖解各項設備上課講義

空調系統(tǒng)外文翻譯-空調系統(tǒng)英文文獻及翻譯

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Air Conditioning Systems Air conditioning has rapidly grown over the past 50 years, from a luxury to a standard system included in most residential and commercial buildings. In 1970, 36% of residences in the U.S. were either fully air conditioned or utilized a room air conditioner for cooling (Blue, et al., 1979). By 1997, this number had more than doubled to 77%, and that year also marked the

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