薄膜可见光透过率平均可达80%以上，在紫外光区有较高的吸收性；
The average transmittance of thin film in visible region was above 80%.
直射光的透过率随着叶面积系数增大而减小，夏半年大于冬半年。
The transmissivity of summer half year is larger than winter half year.
直射光的透过率随着叶面积系数增大而减小，夏半年大于冬半年。
The transmissivity of summer half year is larger than winter half year.
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