A Simple Key For Crystal Unveiled
A Simple Key For Crystal Unveiled
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This idea applies equally in a single, two, and a few-dimensional Areas. The whole crystal lattice can be built by continuously reproducing the sample of your unit cell in all directions.
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A essential thought in crystal buildings could be the unit cell. It is the smallest device of quantity that permits equivalent cells to be stacked jointly to fill all Room. By repeating the sample of the unit cell repeatedly in all directions, all the crystal lattice is usually constructed. A dice is The only example of a unit mobile. Two other illustrations are proven in Figure 1. The main could be the device mobile to get a experience-centred cubic lattice, and the second is for the overall body-centred cubic lattice. These constructions are defined in the following paragraphs.
诗中道出一段唐代由盛变衰的史实。玄宗末年，杨贵妃得宠，三姐妹并封为国夫人。他们养尊处优，奢华至极，仆人用水晶盘将珍馐佳肴端到宴席上，美人觉得没有口味，懒得动筷子。作为“诗圣”作为“史诗”，紫驼一段写饮食之精美，不空发议论，只尽情揭露事实，无一刺讥语，无一慨叹声，却使人于以外得之：此诗之善讽也。以史为鉴，这样的世道，这样的人物，国家不出“安史之乱”那样的大祸反倒不正常了。
看抛光：抛光的好坏直接影响到水晶制品的身价。抛光分为软抛光与硬抛光。
结晶�?When sea water is permitted to evaporate, salt crystals are deposited. 海水蒸发后，盐的结晶体就沉淀下来。
⑩、雷射内雕：以计算机辅助激光设备在水晶对象中进行三维图案的成型，艺术效果好，可以任意表达各类图案，图形，达到逼真效果
1A crystal chandelier lit the room.一盏水晶吊灯照亮了房间。《柯林斯英汉双解大词典》
水晶常以晶簇、晶洞形式产出，其中水晶洞一般存在于由火山喷发而形成的巨厚熔岩流层的火成岩与玄武岩中。火山喷发时所含的气体或热水溶蚀等作用导致岩层中出现大量的孔隙，当富含硅质矿物的流体进入较薄的熔岩孔隙中，且温、压条件合适时将结晶沉淀出水晶等矿物。
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Through the Cambridge English Corpus We say the chain topology inside the large w location here functions because the proverbial ' scratch-on-theglass ' wanted in the natural chemistry laboratory to help make crystals. From the Cambridge English Corpus Regular-strain and temperature molecular-dynamics simulations of crystals in the lecithin fragments - glycerylphosphorylcholine and dilauroylglycerol. Through the Cambridge English Corpus Together with these, dust particles have already been noticed in minimal-temperature plasmas, like Individuals used in plasma processing and plasma crystals. Through the Cambridge English Corpus The final Portion of the book focuses on peculiarities of strongly coupled dusty plasmas, such as the formation of dust crystals and linked beautiful forces. With the Cambridge English Corpus Entire characterization of injury threshold in titanium doped sapphire crystals with nanosecond, picosecond, and femtosecond laser pulses. With the Cambridge English Corpus Unbroken crystals are euhedral; rounded, or maybe more irregular, primary morphologies were not observed. Within the Cambridge English Corpus See all examples of crystal These illustrations are from corpora and from sources on the internet. Any opinions during the illustrations do not signify the view with the Cambridge Dictionary editors or of Cambridge College Push or its licensors.
Molecular Crystals: Total molecules are bonded to each other within an structured way. A superb illustration is usually a sugar crystal, which has sucrose molecules.
水精：水晶为何称为水精，《广雅》有巧解：�?水之精灵�?”；李时珍则说：�?莹洁晶光，如水之精英 ”。细加考究，此称还蕴含浓厚的宗教意味呢。水精一名，最初见于佛书，后汉支曜翻译的《具光明定意经》说：�?其所行道，色如水�?�?。
水晶的价值根据品质、块体的大小、美感和产量多少的不同相差较大。遇到好的天然水晶要敢于下手，但好的水晶一般大家都想得到，值与不值，就要看经验了。由于天然水晶的开采和制作原因，没有瑕疵的水晶很难得到，纯净的饰品要达到与合成水晶媲美的品质，实在是很难得。另外，由于水晶的特性，在佩戴过程中，也会改变其等级，比如因为某种原因，有可能会逐渐产生较大裂纹。