How Much You Need To Expect You'll Pay For A Good Crystal
How Much You Need To Expect You'll Pay For A Good Crystal
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8Where will we get this magic wand and crystal ball?我们到哪里获得这种魔棒和水晶玻璃球?
Crystals are wonderful rock formations which have shocked humans for Many several years. They are really employed for several different things, not just for decoration. Lots of the to start with radios ever invented used crystals to transmit the radio waves. Some instruments, like quartz watches and laser crystals, use Specific Attributes and harmonic abilities of crystals to make really correct measurements and changes.
4Without a crystal ball, It really is extremely hard to say exactly where we'll be upcoming 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》
③次生包裹体:指主体水晶形成后,由于环境的变化使得主晶周围的一些物质沿裂隙进入到其内部而形成的包裹体。形成的原因有出熔作用、裂隙的结晶化、以及放射性元素破坏的作用等。水晶典型的次生包裹体有胶花水晶中的氧化铁充填物等。
2She was wearing a strand of crystal beads.她戴着一串水晶珠子。《柯林斯英汉双解大词典》
Monoclinic �?Characterised by a few unequal axes, two of which intersect at an oblique angle, even though the third is perpendicular for the aircraft of one other two.
水晶与高档宝石的净度要求有很大不同。高档宝石稀少罕见,所以一般人们普遍对高档宝石的净度不会过于苛求。而水晶的产量着实大得惊人,所以通常人们会要求水晶净度越高越好,尽量避免有较明显的内含物的水晶。
The weather are discovered in a number of crystal packing preparations. The commonest lattice buildings for metals are Those people obtained by stacking the atomic spheres into by far the most compact arrangement.
包裹体常见有固相、固液气三相组合、空洞以及双晶、色带等。水晶中典型的同生包裹体有自形的锐钛矿、气液两相包体等。
A crystal program refers back to the classification of crystals depending on the geometric arrangement and symmetry of their lattice structures. There are actually 7 major crystal units:
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”。
Crystals are not merely renowned for his or her physical visual appeal, but diverse crystals of various elements and formations may lead to an enormous assortment of works by using and Actual physical Attributes.
The composition of your sodium atoms by itself, or maybe the chlorine atoms by yourself, is fcc and defines the unit mobile. The sodium chloride construction thus is built up of two interpenetrating fcc lattices. The cesium chloride lattice (Figure 3A) relies about the bcc construction; each and every other atom is cesium or chlorine. In this read more case, the unit mobile is really a dice. The third significant framework for AB
水晶观赏石在形态、质地、内部特征等方面往往十分奇异。大自然有无限风光,都可以在包裹体水晶种找到缩影。