New Step by Step Map For Crystal
New Step by Step Map For Crystal
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17These rings are indicative with the crystal composition of nickel and will be stated only by invoking wavelike Qualities of light.这些光圈表明了了镍的晶体结构，而且只能通过光线中波的特征来解释。
A essential notion in crystal buildings is definitely the device mobile. It's the smallest unit of quantity that enables similar cells to be organized with each other to occupy all obtainable Room. The geometrical foundation of all crystals may be the lattice. A lattice might be considered as a regular and infinite arrangement of points or atoms, the place Every single stage or atom has an identical bordering surroundings.
A simple principle in crystal structures is the unit cell. It is the smallest unit of volume that allows equivalent cells to be stacked collectively to fill all Area. By repeating the pattern of the unit mobile time and again in all Instructions, all the crystal lattice is usually constructed. A dice is The best illustration of a unit cell. Two other illustrations are shown in Figure one. The initial is definitely the unit cell for any deal with-centred cubic lattice, and the 2nd is to get a entire body-centred cubic lattice. These structures are discussed in the following paragraphs.
水碧：《山海经》中，水晶又被称作水碧： �?又南三百里，日耿山，无草木，多水碧 �?，郭璞注�?�?亦水玉类 ”。这种称谓常被文人所引用，晋代郭景纯《璞江赋》道�?�?鬼，水碧�?�?。水晶又有人称它叫玉瑛。《符瑞图》载�?美石似玉，水精谓之玉瑛也�?”
25If you are a Billy Crystal fan, you can love this movie.如果你是比利·克里斯特尔的影迷，你就会喜欢这部电影。《柯林斯英汉双解大词典》
结晶�?When sea drinking water is allowed to evaporate, salt crystals are deposited. 海水蒸发后，盐的结晶体就沉淀下来。
水晶与高档宝石的净度要求有很大不同。高档宝石稀少罕见，所以一般人们普遍对高档宝石的净度不会过于苛求。而水晶的产量着实大得惊人，所以通常人们会要求水晶净度越高越好，尽量避免有较明显的内含物的水晶。
Ionic Crystals: Electrostatic forces kind ionic bonds. A classic example is really a halite or salt crystal.
Crystals are often considered as one thing of immense magnificence, and so they are commonly employed with diamonds or other stones to make parts of jewellery. The vast majority of crystals now are male-manufactured in laboratories.
广义的包裹体是指宝石内部含有的与主晶宝石化学成分、物理性质等不同的物质。
With the Cambridge English Corpus We are saying the chain topology during the superior w region acts because the proverbial ' scratch-on-theglass ' required while in the organic and natural chemistry laboratory to create crystals. Through the Cambridge English Corpus Consistent-force and temperature molecular-dynamics simulations of crystals in the lecithin fragments - glycerylphosphorylcholine and dilauroylglycerol. Through the Cambridge English Corpus Along with these, dust particles have already been noticed in minimal-temperature plasmas, like These Employed in plasma processing and plasma crystals. From your Cambridge English Corpus The final A part of the e-book concentrates on peculiarities of strongly coupled dusty plasmas, such as the development of dust crystals and linked attractive forces. From your Cambridge English Corpus Total characterization of damage threshold in titanium doped sapphire crystals with nanosecond, picosecond, and more info femtosecond laser pulses. From your Cambridge English Corpus Unbroken crystals are euhedral; rounded, or more irregular, Key morphologies were not noticed. Through the Cambridge English Corpus See all samples of crystal These illustrations are from corpora and from resources on the internet. Any thoughts from the illustrations will not signify the feeling from the Cambridge Dictionary editors or of Cambridge College Push or its licensors.
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。
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21You all know the way once you have a crystal prism and pass a beam of daylight via it, you have a spectrum, which appears like a continuous band of rainbow hues.