Top latest Five Crystal Urban news
Top latest Five Crystal Urban news
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轴性、光性:一轴晶正光性。正交偏光下所看到的一轴晶干涉图是独特的,其黑十字臂未达中心,形成中空的图案,俗称牛眼干涉图。中心部分通常为淡绿色或淡粉色。
③、粗抛光:是将模具压出之毛胚,以金刚石盘直接磨出成品之刻线。④、细抛光:在粗抛光之后,以抛光粉来磨成品至晶莹剔透为止。
4Without a crystal ball, It is really difficult to state where by we will be future yr.不用水晶球预卜未来,我们说不准明年处境如何呀。《牛津词典》
养殖晶:养殖晶是指,用天然水晶做种子,然后赋予天然水晶生长的高压条件,养殖器中有富含二氧化硅的分子。然后二氧化硅分子围绕天然水晶种生长,这样的水晶成分(分子式)与天然水晶是一摸一样的,唯一有差别的是,这样的水晶磁场作用没有天然水晶强。
根据美国已经了解的情况,统计局的专家和其他人口统计学家在他们的视野中提供了一个不可抗拒的水晶球。
你们都知道,拿起一个水晶棱镜,让一束阳光通过它,就会得到一个光谱,看起来就像一条连续的彩虹色带。
石英:《广雅》称水晶叫石英,色白如莹者又叫白。为附的异形字。司马相如《子虚赋》就�?�?雌黄�?�?之句。苏林解释:�?�?,白石英�?”。
Being a very hot Option cools or possibly a saturated Remedy evaporates, particles draw close plenty of for chemical bonds to sort. Crystals might also form from deposition straight from the gas stage. Liquid crystals possess particles oriented in an organized fashion, like good crystals, still can easily stream.
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。
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。
All crystal ball crystal distinct copyright liquid crystal crystal lattice crystal structure liquid crystal display See all meanings Idioms and phrases crystal distinct idiom
Molecular Crystals: Full molecules are bonded to one another within an organized method. A good illustration is a sugar crystal, which has sucrose molecules.
《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。”
An additional type of crystalline carbon relies over a molecule with sixty carbon atoms named buckminsterfullerene (C60). The molecular shape is spherical. Each carbon is bonded to a few neighbours, as in graphite, along with the spherical condition is here realized by a mixture of twelve rings with 5 sides and 20 rings with six sides. Identical structures were being to start with visualized through the American architect R. Buckminster Fuller for geodesic domes.