Crystal Options
Crystal Options
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17These rings are indicative of the crystal framework of nickel and can be spelled out 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 elementary thought in crystal constructions will be the unit cell. It's the smallest device of volume that enables equivalent cells to get organized with each other to occupy all obtainable Room. The geometrical basis of all crystals is definitely the lattice. A lattice might be seen as an everyday and infinite arrangement of details or atoms, where by Each individual stage or atom has A similar surrounding setting.
一般而言，紫晶和黄晶是水晶中价值较高的品种。两者进一步的分级是据其颜色的深浅，颜色较深的为A级，稍浅的为B级。一般颜色较深的价格高，但要以不深暗为标准。颜色包括两种，一种是水晶本身的颜色，另一种是内部包裹体的颜色。水晶本身的颜色要艳丽、纯正，分布要均匀，不能太深或太浅，如澳州玉、蓝玉髓、紫晶、黄水晶，其价格就高。无色的水晶内含包裹体的颜色艳丽，其价格也高，如钛晶、绿幽灵、红兔毛。紫水晶一般以稍有云状物、颜色深紫、晶体通透的为上品。
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。
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。
⑧、雕刻：立体感强，工艺高，做工精细，成本高。分手工雕刻图形、机器雕刻文字。
水晶的评价标准和高端宝石有所不同。多数高端宝石把颜色放在评价的第一位，而对水晶来说，颜色和净度（水晶行业称作晶体）是近乎同等重要的因素：
②固体包裹体：指呈固态相存在包裹体，多因岩浆、热液、变质作用等形成的早期结晶物被水晶捕获而形成。
13Nearly all computer systems incorporate a quartz-crystal clock to control their operation.几乎所有的计算机都有一个石英晶体时钟来调节它们的运行。
颜色：无色，浅至深的紫色，浅黄、中至深黄色，浅至深褐、棕色，绿至黄绿色，浅至中粉红。
From the Cambridge English Corpus We are saying the chain topology inside the substantial w area acts since the proverbial ' scratch-on-theglass ' necessary while in the organic and natural chemistry laboratory to generate crystals. With the Cambridge English Corpus Constant-strain and temperature molecular-dynamics simulations of crystals on the lecithin fragments - glycerylphosphorylcholine and dilauroylglycerol. In the Cambridge English Corpus As well as these, dust particles are actually noticed in lower-temperature plasmas, like Individuals used in plasma processing and plasma crystals. Within the Cambridge English Corpus The ultimate A part of the book concentrates on peculiarities of strongly coupled dusty plasmas, including the development of dust crystals and involved beautiful forces. In the Cambridge English Corpus Finish characterization of harm threshold in titanium doped sapphire crystals with nanosecond, picosecond, and femtosecond laser pulses. In the Cambridge English Corpus Unbroken crystals are euhedral; rounded, or more irregular, Principal morphologies weren't noticed. From the Cambridge English Corpus See all samples of crystal These illustrations are from corpora and from resources online. Any opinions from the examples tend not to symbolize the viewpoint of the Cambridge Dictionary editors or of Cambridge College Press or its licensors.
You will discover other minerals and molecules that can kind these crystal lattices. Snowflakes absolutely are a traditional illustration of a about symmetric and geometrically patterned structure from ice crystals, and gemstones of all versions are usually crystals.
This Evaluate chronicles in excess of 20 years of investigate into developing a genetic code for crystal engineering. As an alternative to directing biological procedures, this code takes advantage of synthetic varieties of DNA to programme the assembly of nanoparticles and microparticles into 1D, second and 3D crystalline architectures, in which almost every single element of the resultant buildings might be systematically managed. In just this conceptual framework, the structural and purposeful innovations are described in an effort to define the present standard of Crystal sophistication also to forecast future Instructions with the platform.
水晶观赏石是天然水晶中最具代表的作品，具有其他宝石都不具备的观赏性。不论是玉石翡翠还是都要经过雕琢后次能体现他的价值，而水晶观赏石只需要将表面进行抛光，即展现出晶体内所包裹的物质，直接欣赏原汁原味的水晶石。