The Definitive Guide to Crystal
The Definitive Guide to Crystal
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27Local economists have seemed into their crystal balls and witnessed a thing relatively unpleasant.当地的经济学者们已预测到将会出现棘手的问题。《柯林斯英汉双解大词典》
A essential concept in crystal structures may be the unit cell. It is the smallest unit of volume that enables similar cells to get organized alongside one another to occupy all offered Room. The geometrical basis of all crystals would be the lattice. A lattice is often considered as a daily and infinite arrangement of points or atoms, exactly where each position or atom has The same surrounding ecosystem.
人造水晶分为熔炼水晶与养殖晶：据水晶专家汪毅的阐述，随着水晶的价值提高，喜欢的人增多，水晶也引起了作伪者的兴趣，现阶段中国水晶市场常见的造假方法为：
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。
C2 [ U ] transparent glass of extremely top quality, generally with its area Slash into sensitive styles:
结晶�?When sea h2o is allowed to evaporate, salt crystals are deposited. 海水蒸发后，盐的结晶体就沉淀下来。
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�?”。
市场上有很多人把熔炼水晶也叫做合成水晶，那是不准确的，一般都是以水晶废料为原料在高温高压下熔炼出来的，而不是结晶成的，不具备水晶的晶体特性，所以不能把熔炼水晶与合成水晶混为一谈；但是熔炼水晶耐高温，用优质二氧化硅熔炼成的熔炼水晶可以做成实用产品比如水晶杯、烤盘、茶具等，实际上一代伟人毛泽东主席的水晶棺就是选用东海优质水晶熔炼而成的。
仿制钛晶树水晶：钛晶是水晶里价格最昂贵的，造假者当然也不会放过这么好的产品。天然的环境下，在水晶里能生长个像树一样的钛晶，完全是可能的，只是这样的货很少，那我们的造假专家是如何做的呢，白水晶底下打个洞，激光打点成板状的钛晶进去，就这样这块水晶的身价就能飙升几十倍。往往有的钛晶戒面，会采用将钛晶部位割成板状，与圆面的水晶粘合的方法来制作。
Crystals with apparent flat faces are identified as euhedral crystals, while Those people missing defined faces are called anhedral crystals. Crystals consisting of requested arrays of atoms that are not always periodic are identified as quasicrystals.
say cheese a thing that someone that is using a photograph of you lets you know to state so that your mouth will make the shape of a smile
Molecular Crystals: Whole more info molecules are bonded to each other in an structured method. An excellent case in point is actually a sugar crystal, which contains sucrose molecules.
crystal, any sound content by which the component atoms are organized in a very definite pattern and whose surface regularity demonstrates its inner symmetry.
The C60 molecules, also known as buckyballs, are pretty powerful and Just about incompressible. Crystals are fashioned this sort of that the balls are arranged within an fcc lattice using a one particular-nanometre spacing concerning the centres of adjacent balls. The identical C70 molecule has the shape of a rugby ball; C70 molecules also form an fcc crystal when stacked jointly. The solid fullerenes kind molecular crystals, with weak binding—provided by van der Waals interactions—among the molecules.