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就水汽对光学元件的污染进行了定量的分析、测试．建立了水汽冷凝膜在５．５～７．１μｍ和１０．５～１２．５μｍ的波段的吸收模式．实验结果与理论计算相吻合，测试精度优于３％．
Water vapor on the optical components of the pollution were quantitative analysis and testing. The absorption mode of the vapor condensation film in 5.5 ~ 7.1μm and 10.5 ~ 12.5μm was established. The experimental results are consistent with the theoretical calculations, the test accuracy is better than 3%.