The smart Trick of Crystal That No One is Discussing
The smart Trick of Crystal That No One is Discussing
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27Local economists have appeared into their crystal balls and observed something rather unpleasant.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》
③、粗抛光：是将模具压出之毛胚，以金刚石盘直接磨出成品之刻线。④、细抛光：在粗抛光之后，以抛光粉来磨成品至晶莹剔透为止。
A standard concept in crystal buildings would be the unit cell. It is the smallest device of quantity that permits identical cells being stacked alongside one another to fill all House. By repeating the sample of the unit mobile time and again in all directions, the complete crystal lattice could be created. A dice is the simplest illustration of a unit cell. Two other illustrations are demonstrated in Determine 1. The very first will be the unit mobile for your experience-centred cubic lattice, and the 2nd is for just a overall body-centred cubic lattice. These structures are defined in the subsequent paragraphs.
看原料：选料精良的水晶制品，应看不到胶口及棉絮；质地纯净、光润、晶莹为好。
根据美国已经了解的情况，统计局的专家和其他人口统计学家在他们的视野中提供了一个不可抗拒的水晶球。
, has a similar construction, but There's two possibilities for selecting the holes which the atoms will occupy. The third layer can be positioned more than the atoms of the 1st layer, producing an alternate layer sequence A
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。
损伤是指水晶由于加工或不小心摔掉、碰撞等原因，人为造成的损坏。它可以是破口，也可以是凹坑等。
24I need to make my indicating crystal clear.我想把我的意思解释得清清楚楚。《牛津词典》
晶体 Silicon crystals developed inside a laboratory change light into electrical Power. 在实验室中长成的硅晶体可将光线转变为电能。
Search cryptosporidiosis cryptosporidium cryptozoologist cryptozoology crystal crystal ball crystal apparent idiom crystal lattice BETA copyright #randomImageQuizHook.filename #randomImageQuizHook.isQuiz Take a look at your vocabulary with our entertaining graphic quizzes
The sodium read more chloride crystal lattice is characterized via the shut packing with the good sodium ions and negative chloride ions. Each sodium ion is surrounded by 6 chloride ions, and each chloride ion is surrounded by six sodium ions, developing a remarkably steady and symmetrical structure.
The composition of your sodium atoms alone, or maybe the chlorine atoms on your own, is fcc and defines the device cell. The sodium chloride structure Consequently is built up of two interpenetrating fcc lattices. The cesium chloride lattice (Figure 3A) is based over the bcc framework; each other atom is cesium or chlorine. In such a case, the device mobile is actually a cube. The 3rd significant structure for AB
⑥白色的包裹体有蚀变的绿泥石、云母、愈合裂隙、水晶、方解石、透闪石等。