The complex crystal ofm-cresol and urea has been firstly cultivated by using a mixed solvent including ethanol and THF at a proper ratio.

通过使用一定配比的乙醇和四氢呋喃作混合溶剂，第一次培养出尿素和间甲酚的复合物单晶。

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Geometric structures in two and three dimensions abound in the natural world, from complex crystal shapes to starfish, and unicellular organisms like diatoms.

在二维和三维的几何结构有大量的自然世界，从复杂的晶体形状海星，硅藻的单细胞有机体，像。

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The Ark crystal of Gravity was constructed by modifying an enormous natural crystal in the complex beneath Arkansas, near the area of the Toltec Mounds.

重力方舟水晶的建造，是修改了一个位于阿肯色州下方，靠近托尔特克土堆的一个巨大天然水晶复合体而成的。

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The gift reflects the outsized ambitions the retail-chain family has for the Crystal Bridges Museum of American Art, a complex of eight gallery pavilions it has helped build around a pair of ponds in the company's northwestern Arkansas hometown of Bentonville (population 35, 301).

WSJ: Wal-Mart Heirs Give $800 Million to Museum