An Unbiased View of Crystal
An Unbiased View of Crystal
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17These rings are indicative on the crystal framework of nickel and might be explained only by invoking wavelike Houses of sunshine.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。
An additional exciting, and delicious, experiment is usually to type massive crystals applying sugar. By heating sugar with water after which allowing this Alternative evaporate on sticks, you could type rock sweet from sugar crystals!
4Without a crystal ball, It truly is unattainable to mention in which we are going to be following 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》
Most reliable supplies found in mother nature exist in polycrystalline sort as opposed to as only one crystal. They are actually composed of countless grains (compact crystals) packed jointly to fill all House. Every single specific grain has a distinct orientation than its neighbours. Whilst extended-array order exists in a person grain, at the boundary in between grains, the buying alterations route. A normal bit of iron or copper (Cu) is polycrystalline.
25If you're a Billy Crystal lover, you will really like this movie.如果你是比利·克里斯特尔的影迷,你就会喜欢这部电影。《柯林斯英汉双解大词典》
发晶,包括钛晶,铜顺发,绿发晶,黑发晶,银发晶,杂色发晶,其中钛晶最珍贵,少数钛晶价值可比钻石,红宝石和蓝宝石以及祖母绿。
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 is a very similar directive about crystal glass which differentiates among entire guide crystal, lead crystal and crystal.
Q.4. What is the difference between atomic construction and crystal construction? Ans. The main difference between atomic composition and crystal composition lies of their definitions: atomic structure refers to how atoms are arranged in a solitary molecule or possibly a cluster of get more info molecules, Whilst crystal construction issues the specific arrangement of atoms in a strong substance.
Solids that have small-range order but lack very long-vary order are known as amorphous. Practically any content might be manufactured amorphous by fast solidification from your melt (molten condition). This ailment is unstable, and also the stable will crystallize in time. In case the timescale for crystallization is a long time, then the amorphous condition seems stable.
看孔眼:对于缀穿水晶制品(如项链、手链、佛珠),要看孔眼是否平直,孔的粗细是否均匀,有无细小裂纹。孔壁必须清澈透明,无“白痕”。
的释�?浏览 cryptologist cryptology cryptorchidism cryptosporidium crystal crystal ball crystal very clear idiom copyright crystalline #randomImageQuizHook.filename #randomImageQuizHook.isQuiz 用我们的趣味配图小测验考考你的词汇量
压电性:水晶晶体受到压力时会产生电荷;反之,受到电压作用时,晶体会产生频率很高的振动。水晶具有可使压力与电荷相互转移的性能,称压电性。
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。