Facts About Crystal Revealed
Facts About Crystal Revealed
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27Local economists have looked into their crystal balls and witnessed a little something alternatively 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》
23Sometimes, on the other hand, the crystal type of the silicate inclusions is noticed to resemble a lot more carefully The inner structure of diamond than that of other silicate minerals.然而，有时观察到硅酸盐包裹体的晶体形态比其他硅酸盐矿物更接近金刚石的内部结构。
发晶的价值取决于发的颜色、罕见性及大小，一般是发色鲜艳、块度大的价格高。水胆水晶的价值主要取决于水胆及晶体的大小、透明度的高低。如果水胆较大并有一定形态，便可加工成较为珍贵的工艺品。另外水胆中的水也有一定的科学研究价值，通过它们可了解几百万年前地球上水的成分及变化。
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Fig. four: Creating blocks with unique shapes and surface chemistries immediate the formation of distinctive crystal symmetries.
They're going to eventually produce a awesome tiny uniform cluster of atoms, This really is the process of expanding crystals. The more they're able to come with each other, the more of a formation will likely be noticeable into the naked eye. Researchers can establish what mineral They're checking out by how the crystals kind.
光泽：玻璃光泽。断口处为油脂光泽。光泽，指宝石表面对光线反射的一种光学性质。观察水晶的光泽，可用手握着它，以灯光或窗户投进来的光线看表面反射，透明水晶亮度与光泽强弱有关。
1A crystal chandelier lit the space.一盏水晶吊灯照亮了房间。《柯林斯英汉双解大词典》
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。
The definition of the strong seems apparent; a stable is normally thought of as staying really hard and agency. Upon inspection, however, the definition turns into significantly less simple. A dice of butter, for instance, is difficult immediately after becoming stored in a very fridge and is clearly a sound. Just after remaining around the kitchen counter for each day, a similar dice gets to be fairly smooth, and it really is unclear In the event the butter need to however be considered a solid.
With the Cambridge English Corpus We say the chain topology during the superior w area functions given that the proverbial ' scratch-on-theglass ' desired during the natural chemistry laboratory to make crystals. Through the Cambridge English Corpus Frequent-pressure and temperature molecular-dynamics simulations of crystals of your lecithin fragments - glycerylphosphorylcholine and dilauroylglycerol. In the Cambridge English Corpus In addition to these, dust particles have been noticed in low-temperature plasmas, like Individuals Utilized in plasma processing and plasma crystals. Within the Cambridge English Corpus The ultimate Portion of the book concentrates on peculiarities of strongly coupled dusty plasmas, such as the development of dust crystals and involved attractive forces. Through the Cambridge English Corpus Total characterization of harm threshold in titanium doped sapphire crystals with nanosecond, picosecond, and femtosecond laser pulses. From your Cambridge English Corpus Unbroken crystals are euhedral; rounded, or here maybe more irregular, Most important morphologies weren't noticed. From the Cambridge English Corpus See all examples of crystal These examples are from corpora and from resources on the web. Any opinions inside the examples usually do not depict the feeling in the Cambridge Dictionary editors or of Cambridge College Press or its licensors.
Molecular Crystals: Whole molecules are bonded to one another in an arranged fashion. A good illustration is actually a sugar crystal, which contains sucrose molecules.
在透明的水晶中，隐裂纹呈亮晶晶的片状，有时还会有晕彩效应。这些裂纹是水晶在生长过程中，遇到外力挤压而在内部产生的一些隐形裂纹，隐裂纹在芙蓉石、紫水晶、白水晶球及白水晶柱中都很常见。有的裂纹后来被物质填充，形成愈合的裂纹，也就是原来的裂纹又长住了。这种裂纹对水晶的影响相对要小一些。
A further kind of crystalline carbon is predicated on the molecule with sixty carbon atoms called buckminsterfullerene (C60). The molecular form is spherical. Each individual carbon is bonded to a few neighbours, as in graphite, as well as spherical shape is attained by a mix of twelve rings with five sides and 20 rings with six sides. Very similar structures were being first visualized from the American architect R. Buckminster Fuller for geodesic domes.