About Crystal
About Crystal
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17These rings are indicative in the crystal composition of nickel and may be explained only by invoking wavelike Homes of sunshine.这些光圈表明了了镍的晶体结构,而且只能通过光线中波的特征来解释。
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看做工:水晶制品加工过程分为两种,即磨工和雕工。如水晶项链、手链、耳环等属于研磨品;观音像、内画鼻烟壶等属于雕刻品。
养殖晶:养殖晶是指,用天然水晶做种子,然后赋予天然水晶生长的高压条件,养殖器中有富含二氧化硅的分子。然后二氧化硅分子围绕天然水晶种生长,这样的水晶成分(分子式)与天然水晶是一摸一样的,唯一有差别的是,这样的水晶磁场作用没有天然水晶强。
2She was sporting 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 �?Characterized by 3 unequal axes, two of which intersect at an oblique angle, whilst the 3rd is perpendicular towards the airplane of another two.
根据包裹体和主晶宝石之间形成的先后关系可将水晶的包裹体划分以下三种类�?
For a hot Remedy cools or possibly a saturated Remedy evaporates, particles attract near ample for chemical bonds to type. Crystals may form from deposition directly from the gas section. Liquid crystals have particles oriented within an structured way, like strong crystals, nonetheless have the ability to flow.
24I intend to make my that means crystal crystal clear.我想把我的意思解释得清清楚楚。《牛津词典》
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。
地质学家目前为止对晶洞形成还没有广泛认同的理论,但相信晶洞可以在任何埋藏的空腔内形成。这些空腔可以是火成岩中的气泡、树根下的空穴,甚至动物挖的地洞。经过漫长时间,空腔的外壁变硬,溶解的矽酸盐或方解石沉积到内壁。再经过漫长的时间,缓慢渗入的矿物使得晶体在空腔内部结晶。
Crystal Lattices There are actually 7 techniques of crystal structures, that happen to be also referred to as lattices or Room lattices:
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crystal Alteration is variable: absent in many crystals, in Other folks manufacturing dense sericite aggregates which may present some recrystallization outcomes to generate coarser-grained white mica. From the Cambridge English Corpus The tridymite crystals are rectangular or wedge-shaped and are occasionally organized in aggregates. From the Cambridge English Corpus Also, haloarchaeal cells ended up embedded in just salt crystals underneath laboratory ailments and subsequently analysed by gentle microscopy. In the Cambridge English Corpus The white clouds (ordinarily sparse) had been also commonly considered becoming made up of small crystals of h2o ice, instead like cirrus within our atmosphere. With the Cambridge English Corpus They may be located in evaporite salt lakes and will be trapped in salt crystals in the course of evaporation. Within the Cambridge English Corpus For that reason, the cells (organelles and membranes) are ruined mechanically by ice crystals, resulting in Demise via cell lysis. Within the Cambridge English Corpus The crystals have been Utilized in the main or next orders of reflection. Within the Cambridge English Corpus Inside our 8xperiments, the crystals have been cubes having a base region of 8 e mm. In the Cambridge website English Corpus Vibration-assisted intermolecular hydrogen tunneling in photoreactive doped molecular crystals : influence of temperature and force.