Detailed Notes on Crystal
Detailed Notes on Crystal
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27Local economists have appeared into their crystal balls and noticed something somewhat nasty.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》
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景观水晶，就是包裹体组成各种造型特异的水晶，有的似山水，有的似人物，有些像文字，有些像动物，植物，器物等等。
We've composed about about 300 stones from the mineral kingdom! Read about Each and every stone's exclusive origin, record, and energies underneath.
Crystalline structure is characterised by a geometric, repeating pattern of symmetric molecular framework. The arrangement of atoms kinds these requested, repeating patterns.
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⑩、雷射内雕：以计算机辅助激光设备在水晶对象中进行三维图案的成型，艺术效果好，可以任意表达各类图案，图形，达到逼真效果
The elements are uncovered in a number of crystal packing preparations. The most common lattice constructions for metals are People acquired by stacking the atomic spheres into quite possibly the most compact arrangement.
Metallic Crystals: Metals usually sort metallic crystals, wherever many of the valence electrons are no cost to maneuver through the entire lattice. Iron, such as, can sort diverse metallic crystals.
⑤化学稳定�?非常好，在常温下仅溶解于氢氟酸，不溶解于其它各类酸、碱。在高温高压条件下可溶解于碳酸钠溶液中。
Single crystals of metals are delicate and malleable, although polycrystalline metals are more challenging and stronger and are more practical industrially. Most polycrystalline products could be produced into significant solitary crystals immediately after prolonged heat procedure. In past times blacksmiths would heat a bit of steel to really make it malleable: heat tends to make some grains expand substantial by incorporating smaller ones. The smiths would bend the softened steel into condition after which you can pound it awhile; the pounding would help it become polycrystalline once again, escalating its strength.
Molecular Crystals: Complete molecules are bonded to each other in an structured fashion. A very good instance is often a sugar crystal, which consists of sucrose molecules.
《古今小说·李公子救蛇获称心》：“器皿皆是玻璃、水晶、琥珀、玛瑙为之，曲尽巧妙，非人间所有。”
21You all know the way any time Crystal you take a crystal prism and move a beam of daylight by way of it, you will get a spectrum, which looks like a continual band of rainbow colors.