• These direct light downward to reduce light pollution and light at night.

    这些向下的直射减少夜晚的光污染

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  • Lighting has been designed to avoid pollution of the night sky.

    设计光照设备避免夜晚天空污染物

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  • Even at night, big cities like New York glow from light pollution, making stargazing2 difficult.

    即使夜晚纽约这样的大城市污染而灯火通明使得观望星星困难

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  • These direct light downward to reduce light pollution at night.

    这些向下直射减少夜间的光污染

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  • The rays of street lights and the dust of pollution cover the night sky.

    夜空街灯光线飞扬的尘埃覆没。

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  • The rays of street lights and the dust of pollution cover the night sky.

    夜空街灯光线飞扬的尘埃覆没。

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