5 Simple Techniques For Crystal
5 Simple Techniques For Crystal
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27Local economists have seemed into their crystal balls and found something alternatively 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》
the sound state of many simple substances, which have an everyday condition and surfaces arranged in related styles
10This could be the silicon chip—just a little chip of silicon crystal.这是硅芯片——一个硅晶体的小芯片。
Fig. 3: A library of lattice symmetries can be accessed by shifting the particle Main and DNA shell.
Fig. 4: Making blocks with different styles and surface area chemistries immediate the development of unique crystal symmetries.
They will inevitably produce a great tiny uniform cluster of atoms, That is the whole process of developing crystals. The greater they are able to appear collectively, the greater of the development are going to be visible towards the naked eye. Experts can decide what mineral They're investigating by how the crystals variety.
时尚的收藏爱好者喜欢收藏天然水晶，却常常因为在市场上面对大量的合成水晶看走了眼。市面上的水晶：
26Some of the best consuming glasses are constructed from guide crystal.一些最精致的酒杯是用铅晶质玻璃制成的。《柯林斯英汉双解大词典》
第三种是“皮景”，因某些其他的矿物与水晶体共生，或由于其他的物质侵蚀而依附于水晶表面，或者是水晶受自然环境的影响，在水晶表面出现蚀象，形成了一些景象或图案，这种景观存在于水晶表面。
幽灵水晶，分绿幽灵，红幽灵，白幽灵等，主要组成为绿泥石，其中绿幽灵属于珍贵品种。
16I opened the box and observed a bit of crystal snowflake plus a greeting card with "Joyful Birthday" inside 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。
You will find only a few unique unit-cell shapes, so many different crystals share one device-mobile kind. A significant characteristic of a device mobile is the amount of atoms it includes. The overall number of click here atoms in your entire crystal will be the variety in each mobile multiplied by the quantity of unit cells. Copper and aluminum (Al) Each and every have one atom for each device cell, although zinc (Zn) and sodium chloride have two. Most crystals have just a few atoms for each unit cell, but there are a few exceptions. Crystals of polymers, for instance, have A huge number of atoms in Every unit mobile.
水玉：中国最古老的称法叫水玉，意谓似水之玉，又说是 �?千年之冰所�?�?。唐代诗人温庭筠《题李处士幽居》写道：�?水玉簪头白角巾，瑶琴寂历拂轻�?”。水玉一词最早频繁出于《山海经》：�?又东三百里，日堂庭之�?…�?多水�?”；�?丹山出焉，东南流注于洛水，其中多水玉 ”；�?逐水出焉，北流注于渭，其中多水玉 ”。司马相如《上林赋》曰�?�?水玉磊河 �?。水晶得名水玉，古人是看�?�?其莹如水，其坚如�?�?的质地。
水晶的价值根据品质、块体的大小、美感和产量多少的不同相差较大。遇到好的天然水晶要敢于下手，但好的水晶一般大家都想得到，值与不值，就要看经验了。由于天然水晶的开采和制作原因，没有瑕疵的水晶很难得到，纯净的饰品要达到与合成水晶媲美的品质，实在是很难得。另外，由于水晶的特性，在佩戴过程中，也会改变其等级，比如因为某种原因，有可能会逐渐产生较大裂纹。