Detailed Notes on Crystal
A good is crystalline if it's extensive-range order. When the positions of an atom and its neighbours are acknowledged at just one position, the area of each and every atom is understood precisely throughout the crystal. Most liquids deficiency extensive-variety get, Even though several have quick-selection purchase. Small array is outlined as the primary- or 2nd-nearest neighbours of the atom. In many liquids the initial-neighbour atoms are organized in the same framework as within the corresponding stable phase.By clicking “Take All Cookies�? you agree to the storing of cookies with your gadget to improve web page navigation, examine internet site usage, and aid in our promoting efforts.
4Without a crystal ball, it's difficult to say where we'll be following 12 months.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》
Tetragonal: These crystals kind prisms and double pyramids. The framework is like a cubic crystal, other than 1 axis is for a longer period than another.
断口:贝壳状。断口也叫破口。它是指矿物被打击后产生不规则的破裂,破裂裂面凹凸不平称为断口。根据断口的形状可分为贝壳状和锯齿状。
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石英:《广雅》称水晶叫石英,色白如莹者又叫白。为附的异形字。司马相如《子虚赋》就�?�?雌黄�?�?之句。苏林解释:�?�?,白石英�?”。
发晶:无色、浅黄、浅褐等,可因含金红石常呈金黄、褐红等色,含电气石常呈灰黑色;含阳起石而呈灰绿色。
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22Working from what America already is aware about alone, the bureau's specialists and other demographers provide an irresistible, if clouded, crystal ball among their visions.
15The trick to a superb thermoelectric substance is usually a crystal composition where electrons can circulation freely.制造一种好的热电材料的关键是,需要一种电子可以自由流动的晶体结构。
Fig. one: Schematic of crystal development from creating blocks composed of a particle Main and a shell of DNA ligands hooked up for the particle floor.
⑨、喷砂:立体感弱,较平整,无凹凸感,机器雕刻文字、图形等后进行效果处理。成本低制作快。
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。