The fiber undergone robust environmental testing that enables its stability against hydrogen-induced attenuation, to ensure long-term reliability of field installed optical fiber cables.

经过恶劣的环境试验证明，低水峰光纤具有稳定的抗氢气引起的衰减性能，可确保现场安装的低水峰光纤光缆长期可靠地工作。

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Then the color and contrast attenuation models are presented to replace the color term and the contrast term in energy function which will reduce the infection due to illumination.

其次，算法提出颜色衰减模型和对比度衰减模型，改进能量公式中的颜色分量和对比度分量，消除光照变化对于减除结果的影响。

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