Due to the wavelength dependence and finite spectral width of the reflection curve, the reflectivity which takes effect is generally higher than the minimum reflectivity claimed.

由于减反膜自身反射率曲线的波长依赖性和谱线宽度的有限性，故一般情况下镀膜面的实际反射率比减反膜自身的最低反射率高。

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As the muni yield curve steepens investors will start interpreting that steepening as a reflection of increased risk.

FORBES: Move Over Treasuries, Muni Bonds Are The New Bellwether