Fascination About Crystal
Fascination About Crystal
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27Local economists have appeared into their crystal balls and found anything alternatively horrible.当地的经济学者们已预测到将会出现棘手的问题。《柯林斯英汉双解大词典》
A essential plan in crystal constructions is definitely the unit cell. It is the smallest device of quantity that allows identical cells being organized with each other to occupy all accessible Place. The geometrical basis of all crystals may be the lattice. A lattice might be considered as a daily and infinite arrangement of points or atoms, exactly where Every single issue or atom has The same encompassing atmosphere.
These improvements include unique buildings with programmable lattice symmetries and effectively-defined crystal habits, responsive supplies that leverage the intrinsic Qualities of nucleic acids to govern buildings on demand, nanoparticle superlattices grown epitaxially from surfaces and colloidal crystals which offer insights into light–issue interactions. Searching forward, we problem the community to leverage the extraordinary structural control afforded by crystal engineering with DNA to synthesize lessons of useful products that push beyond what continues to be attainable with The natural way developing crystalline elements or Individuals made by much more typical techniques.
Fig. three: A library of lattice symmetries might be accessed by modifying the particle core and DNA shell.
这种水晶观赏石特指水晶晶簇，它是众多单晶体集中生长在一起的晶体组合。晶簇以其晶莹剔透、独特造型而享誉水晶赏石界。
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Incorporate to phrase record Increase to phrase list [ C/U ] clear rock that appears like ice, or perhaps a piece of it
Crystals are almost nothing in excess of an requested arrangement of molecules or atoms. Crystals are available many alternative shapes and sizes, and every one has diverse traits. The things they are created of determines how it can type.
本词条由中国科学院大学地球与行星科学学院、中国科学院地质与地球物理研究所 参与编辑并审核，经科普中国·科学百科认�?。
[ C/U ] transparent glass of high quality, ordinarily with its surface area Lower into patterns that reflect gentle
用手去触摸水晶，天然水晶通常温度要比人造水晶的要凉的多；用眼观察，天然水晶通常有棉絮状的包裹体，这个是人造水晶所没有的。
水晶的价值还与块体大小有关，同样的颜色和净度级别，块越大越难得。有时候质量级别虽然低一些，但块体够大，也可能价格高于高级别的小晶体
《古今小说·李公子救蛇获称心》：“器皿皆是玻璃、水晶、琥珀、玛瑙为之，曲尽巧妙，非人间所有。”
21You all know how if you take a crystal prism and move a beam of daylight via it, you get a spectrum, which appears like a ongoing band of rainbow colours.