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Accoding to solar spectral radiation data abserved in Beijing, the increasing rate of spectral irradiation ratio are 3.8%、 -6.6%and 6.1%for ultraviolet, visible and infra-red radiation in recent 10 years. |
中文意思: 据北京太阳分光辐射实测资料,近10年紫外、可见光和红外分光辐照比分别增长3.8%、-6.6%和6.1%。 |
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