The Greatest Guide To Crystal

Not all crystals are equally crystalline. There are sometimes impurities, and the ionic & covalent in between molecules can build vastly diverse structures outside of the exact same materials. A terrific example of this are diamonds and graphene.

①压电效�?在机械力(压力或拉�?作用下,水晶单晶体的两端会产生电荷,其电量相等但符号相反。在工业上,无色、无缺陷、不具双晶的水晶常被用来作压电石英片。

4Without a crystal ball, It can be not possible to say where by we will be future year.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》

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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。

⑧、雕刻:立体感强,工艺高,做工精细,成本高。分手工雕刻图形、机器雕刻文字。

30Three times went past, and I used to be astonished to find out it once again: all of the openings had been sewed up by slender and white thread plus they seemed such as ice crystal on winter's branches within the north.

②固体包裹体:指呈固态相存在包裹体,多因岩浆、热液、变质作用等形成的早期结晶物被水晶捕获而形成。

仿制钛晶树水晶:钛晶是水晶里价格最昂贵的,造假者当然也不会放过这么好的产品。天然的环境下,在水晶里能生长个像树一样的钛晶,完全是可能的,只是这样的货很少,那我们的造假专家是如何做的呢,白水晶底下打个洞,激光打点成板状的钛晶进去,就这样这块水晶的身价就能飙升几十倍。往往有的钛晶戒面,会采用将钛晶部位割成板状,与圆面的水晶粘合的方法来制作。

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16I opened the box and saw a piece of crystal snowflake in addition to a greeting card with "Satisfied Birthday" in the blank paper.我打开盒子并看见在白纸中有一片水晶雪花和一张写着“生日快乐”的贺卡。

Crystal Lattices You will find seven devices of crystal constructions, that happen to be also known as lattices or space lattices:

14For illustration, We've Quartz crystal clocks and watches precise to within a single moment a 12 click here months.例如,我们使用的每年误差不超过1分钟的石英水晶钟表和手表。

Tetragonal �?Characterised by 3 mutually perpendicular axes, two of which happen to be equal in length, though the 3rd is lengthier or shorter and perpendicular to another two.

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