It has an important sense in guiding application of the natural colored mineral rock, and in improving the artistic effect and product quality of the pasting picture of sands and plants.

这对指导天然彩色矿物岩石的开发利用，提高砂石植物粘贴画的艺术效果和产品质量具有重要的理论和实际意义。

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Therefore characteristic research and development of special function of the natural colored cotton have important actual meaning and social use value.

因而天然彩色棉的性能研究和功能面料的开发具有重要的现实意义和社会使用价值。

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Effective methods to identify natural colored cotton from dyed cotton have not been found.

现在对天然彩色棉和染色棉没有很好的鉴别方法。

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The competition is founded and hosted by the A merican Gem Trade Association, an organization of United States and Canadian trade professionals that promote the long-term stability and integrity of the natural colored gemstone and cultured pearl industries.

FORBES: Award Winning Jewelry Designs

In the spring, tourists come from all over the world to see the natural wonders: crystalline salt popping out of the ground, sand dunes surrounded by mountains, vibrantly colored, unearthly-looking rock formations and, if there's been enough rain, blooming wildflowers.

NPR: Students Blossom in the Desert