睡觉时，要保证周围环境的全黑。在窗户上用遮光窗帘，甚至铝箔；可以考虑戴眼罩。
Make sure your bedtime is completely dark. Use light blocking curtains or even aluminum foil on the Windows; consider wearing an eye mask.
设计并研究了具有全遮光功能的窗帘面料。分析了影响面料遮光性能的因素，并针对影响因素进行设计。
To design and study new light shading curtain fabric, factors affecting fight shading of the fabric are analyzed with affecting factors redesigned.
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