不同种类数量：仅在海洋光区就有50 000。

Number of different species: 50, 000 in the light zone of the ocean alone.

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而太阳光谱中紫外光区占不到5%，可见光区则占43%。

Because less then 5% of the sun spectrum is ultraviolet radiation and 43% is visible light.

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这个安全材质网络证明了如何去做一个只在高光区上的表面透明材质。

The safe shading network demonstrates how to make a surface transparent only where there are specular highlights.

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