8Where do we get this magic wand and crystal ball?我们到哪里获得这种魔棒和水晶玻璃球？
Crystals are beautiful rock formations that have amazed people for A huge number of a long time. They are really used for several different things, not just for decoration. A lot of the very first radios ever invented utilised crystals to transmit the radio waves. Some instruments, like quartz watches and laser crystals, use Exclusive properties and harmonic capabilities of crystals for making really accurate measurements and adjustments.
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：
Most solid elements present in character exist in polycrystalline kind rather than as only one crystal. They are actually made up of countless grains (compact crystals) packed alongside one another to fill all Area. Each and every unique grain has a different orientation than its neighbours. Though extended-selection get exists inside a single grain, in the boundary involving grains, the buying variations path. An average bit of iron or copper (Cu) is polycrystalline.
You will find many various crystals depending on geometric buildings, crystal progress, and material. There is often arrangements of hexagonal carbon atoms or amethyst which makes hexagonal pyramid constructions.
Lattices could possibly have one lattice place per cell or multiple, yielding a total of 14 Bravais crystal lattice styles. Bravais lattices, named for physicist and crystallographer Auguste Bravais, explain the three-dimensional array produced by a set of discrete details.
对任何宝石来说，颜色都是非常重要的，水晶也不例外。如果是水晶晶体是有颜色的，如粉水晶、黄水晶、紫水晶等，其颜色评价的最高标准则是明艳动人，不带有灰色、黑色、褐色等其他色调。如粉水晶，颜色以粉红为佳；紫水晶，要求颜色为鲜紫，纯净不发黑；黄水晶，要求颜色不含绿色、柠檬色调，以金橘色为佳。对于发晶来说，晶体的颜色也是很重要的。相同发丝的金发晶，晶体完全无色（白水晶）和晶体略偏茶色，肉眼的视觉观感也是有差别的，所以前者的价格会高于后者。
There exists a related directive about crystal glass which differentiates concerning full guide crystal, direct crystal and crystal.
A lot of crystals behave like butter in that they are hard at small temperatures but gentle at bigger temperatures. They can be referred to as solids in any respect temperatures under their melting stage. A possible definition of a sound is undoubtedly an object that retains its condition if still left undisturbed. The pertinent difficulty is how much time the object keeps its form. A remarkably viscous fluid retains its form for an hour or so although not a 12 months. A solid should retain its form for a longer period than that.
看文化：水晶里面的包裹体象形，能与文化、宗教及历史有所牵连的话，价格往往会比水晶本身的价值高出几倍甚至几百倍。
With the Cambridge English Corpus We say the chain topology in the significant w location acts as being the proverbial read more ' scratch-on-theglass ' desired while in the natural and organic chemistry laboratory to help make crystals. In the Cambridge English Corpus Regular-strain and temperature molecular-dynamics simulations of crystals of the lecithin fragments - glycerylphosphorylcholine and dilauroylglycerol. From your Cambridge English Corpus Along with these, dust particles have been observed in reduced-temperature plasmas, like those Utilized in plasma processing and plasma crystals. Through the Cambridge English Corpus The ultimate part of the guide concentrates on peculiarities of strongly coupled dusty plasmas, including the formation of dust crystals and linked attractive forces. From the Cambridge English Corpus Entire characterization of damage threshold in titanium doped sapphire crystals with nanosecond, picosecond, and femtosecond laser pulses. From your Cambridge English Corpus Unbroken crystals are euhedral; rounded, or more irregular, Key morphologies weren't observed. Through the Cambridge English Corpus See all samples of crystal These examples are from corpora and from sources on the internet. Any viewpoints while in the examples will not depict the opinion in the Cambridge Dictionary editors or of Cambridge University Press or its licensors.
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14For example, We've got Quartz crystal clocks and watches precise to within a person minute a yr.例如，我们使用的每年误差不超过one分钟的石英水晶钟表和手表。
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