这是一幅想象中的图画，观察点位于星尘环中的一颗想象中的星球，它的一侧正好朝向黑洞。

This imaginary view is from a hypothetical planet inside the dust dusk, looking toward the black hole.

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通过分析比较，确定上部全幅堰与下部侧收缩堰相结合的方式是废水测流堰槽的最佳设计方案。

The only optimum design scheme was the combination form of full breadth weir and downside the shrinking weir.

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老人脸部的光影关系明确，侧逆光的运用对人物表情、五官的质感刻画很精彩。是一幅很好的肖像摄影作品。

The light and shadow on the face is very clear the backlight application for the facial texture and emotional expression is splendid a good portrait photograph.

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