27Local economists have appeared into their crystal balls and observed one thing relatively horrible.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》
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10This will be the silicon chip—somewhat chip of silicon crystal.这是硅芯片——一个硅晶体的小芯片。
The ordered inner structure of huge crystals, similar to the fluorite and quartz demonstrated in this article, is mirrored in their geometric shapes.
看抛光：抛光的好坏直接影响到水晶制品的身价。抛光分为软抛光与硬抛光。
Lattices could possibly have a single lattice stage for every mobile or multiple, yielding a total of 14 Bravais crystal lattice styles. Bravais lattices, named for physicist and crystallographer Auguste Bravais, describe the 3-dimensional array created by a set of discrete factors.
Crystals look special from many other rocks and minerals, but �?barring a handful of Specific instances �?nearly all minerals hide a crystalline construction underneath the floor.
1A crystal chandelier lit the room.一盏水晶吊灯照亮了房间。《柯林斯英汉双解大词典》
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Crystals with apparent flat faces are known as euhedral crystals, though those lacking described more info faces are referred to as anhedral crystals. Crystals consisting of purchased arrays of atoms that are not constantly periodic are termed quasicrystals.
There are two this sort of doable periodic preparations. In Every single, the primary layer has the atoms packed right into a aircraft-triangular lattice in which every atom has 6 fast neighbours. Figure 2 displays this arrangement with the atoms labeled A
Crystals are not just renowned for their Actual physical look, but various crystals of different elements and formations may lead to a vast selection of makes use of and Actual physical Homes.
玉石纹理如果能形成美丽的花纹、图案，其价格就高，如玛瑙内红白相间的色带有规律地排列，形成缠丝玛瑙时，碧玉中的不均匀颜色形成一种风景图案时，材料的价值将提高。当水晶内包裹体形成美丽的图案时，如幽灵水晶、风景水晶，或者针状包裹体呈束状排列时，其价值都高于普通的水晶。图案越美观、越有意境越好。
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