Crystal Fundamentals Explained
Crystal Fundamentals Explained
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天然的水晶一般都会有絮状（绵绺），也就是大家俗称的瑕疵，这是液体水落石出和二氧化碳的小孔穴，而人工合成的水晶就不会有这样的特征。
12He tried again in quite a few other metropolitan areas and succeeded with Crystal Caramels.他又在其他几个城市再次尝试，并成功制出了水晶焦糖。
A simple notion in crystal constructions is the unit mobile. It's the smallest device of volume that allows identical cells to get stacked jointly to fill all space. By repeating the pattern with the unit mobile time and again in all directions, your entire crystal lattice is usually constructed. A dice is The only example of a unit cell. Two other illustrations are shown in Determine 1. The first is definitely the device mobile for any experience-centred cubic lattice, and the next is for just a body-centred cubic lattice. These buildings are stated in the next paragraphs.
Most good elements found in mother nature exist in polycrystalline kind as opposed to as a single crystal. They are actually composed of millions of grains (tiny crystals) packed alongside one another to fill all space. Each particular person grain has another orientation than its neighbours. Even though prolonged-array purchase exists inside of a person grain, in the boundary amongst grains, the purchasing adjustments direction. A typical piece of iron or copper (Cu) is polycrystalline.
25If you are a Billy Crystal fan, you may enjoy this film.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。
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
Hexagonal �?Characterized by 4 axes, three of which can be equivalent in length and intersect at a hundred and twenty levels, having a fourth axis perpendicular to the other a few.
13Nearly all personal computers comprise a quartz-crystal clock to control their operation.几乎所有的计算机都有一个石英晶体时钟来调节它们的运行。
Solids that have small-selection purchase but absence long-selection order are referred to as website amorphous. Nearly any content can be made amorphous by quick solidification in the melt (molten state). This affliction is unstable, plus the solid will crystallize in time. If the timescale for crystallization is several years, then the amorphous point out seems stable.
16I opened the box and saw a piece of crystal snowflake along with a greeting card with "Joyful Birthday" from the blank paper.我打开盒子并看见在白纸中有一片水晶雪花和一张写着“生日快乐”的贺卡。
隐晶类水晶外观是一块块的，不是成六角水晶簇状，但他们却也是属六方晶系的。但我们不能以肉眼观察到他们的六角形结晶，因为结晶的体积极为细小，需以显微镜协助下才能看到六角开结晶。而此类水晶非常平滑，因为结晶之间有“水化硅石”填补，玛瑙便属于此类。
⑤、打孔：是在水晶成品未完成前，根据其所需打孔之尺寸及位置，以钻头加工，如制表件、笔筒、瓶孔等。
Fig. five: A chance to know defined crystal behavior is depending on the symmetry engineering strategy.