5 Simple Statements About Crystal Explained
5 Simple Statements About Crystal Explained
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This idea applies equally in one, two, and a few-dimensional Areas. All the crystal lattice might be built by consistently reproducing the sample in the device cell in all directions.
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A essential principle in crystal structures may be the device mobile. It's the smallest device of quantity that allows similar cells for being stacked jointly to fill all Place. By repeating the pattern on the device cell time and again in all directions, the complete crystal lattice may be constructed. A cube is the simplest illustration of a unit cell. Two other illustrations are proven in Figure one. The 1st could be the device mobile for the experience-centred cubic lattice, and the 2nd is for any system-centred cubic lattice. These structures are stated in the next paragraphs.
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You will find numerous crystals determined by geometric constructions, crystal growth, and substance. There could be preparations of hexagonal carbon atoms or amethyst which makes hexagonal pyramid buildings.
, has a similar structure, but There's two alternatives for selecting the holes that the atoms will occupy. The 3rd layer is often positioned about the atoms of the initial layer, building an alternate layer sequence A
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Hexagonal �?Characterized by 4 axes, 3 of which are equal in duration and intersect at a hundred and twenty degrees, with a fourth axis perpendicular to another three.
24I want to make my this means crystal crystal clear.我想把我的意思解释得清清楚楚。《牛津词典》
crystal The freshly crystallized quartz grains are characterized by elongate crystals oriented oblique to your shear band margins, defining a normal grain-condition foliation. 来自 Cambridge English Corpus We are saying the chain topology inside the higher w area acts since the proverbial ' scratch-on-theglass ' necessary within the organic chemistry laboratory to make check here crystals. 来自 Cambridge English Corpus The age scatter among the the individual crystals could replicate incorporation of xenocrysts from previously magmatic pulses or protoliths. 来自 Cambridge English Corpus The clinopyroxene types neutral to pale brown, subhedral to anhedral crystals, occasionally that contains inclusions of plagioclase microlaths and opaque phases.
All crystal ball crystal obvious copyright liquid crystal crystal lattice crystal construction liquid crystal Exhibit See all meanings Idioms and phrases crystal apparent idiom
隐晶类水晶外观是一块块的，不是成六角水晶簇状，但他们却也是属六方晶系的。但我们不能以肉眼观察到他们的六角形结晶，因为结晶的体积极为细小，需以显微镜协助下才能看到六角开结晶。而此类水晶非常平滑，因为结晶之间有“水化硅石”填补，玛瑙便属于此类。
14For example, we have Quartz crystal clocks and watches correct to within a single moment a year.例如，我们使用的每年误差不超过1分钟的石英水晶钟表和手表。
This crystal structure is answerable for the one of a kind physical and chemical Attributes of sodium chloride, such as its large melting position, electrical conductivity, and skill to type ionic bonds conveniently.