5 Essential Elements For Crystal
5 Essential Elements For Crystal
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李商隐，杜牧，白居易，欧阳修，苏轼，呈大昌，辛弃疾，杨万里，吴文英，杨基，魏源等诗坛，词林大家都有歌吟水晶的佳篇传世。
按照透明度指标，水晶越透明，价格越高，好的透明的水晶加工出的成品晶莹剔透、光辉耀眼。透明度高的水晶能提升颜色的艳丽，否则显得呆板无灵性。光学水晶要求全透明、无双晶、无杂质。工艺水晶要求透明、少裂、少瑕疵。熔炼水晶要求透明，可有较多裂纹。三者价值依次降低，熔炼水晶只能作为熔炼水晶玻璃的原料。在工艺水晶中，晶体较大的，可用来做水晶眼镜和雕刻高档工艺品，因而价格较高。
4Without a crystal ball, It can be unachievable to convey the place we are going to 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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条痕颜色：无色。矿物粉末的颜色叫条痕。它可以消除假色，减弱他色，保留自色，是比矿物的颜色更为可靠的鉴定特征之一。
Not all crystals type in drinking water, but almost all crystals variety exactly the same way, atoms appear together and turn into a uniformed cluster. The procedure can take as tiny as a couple of days to perhaps a thousand several years. All-natural crystals that originate from the Earth form a similar way.
Crystals glance exceptional from all kinds of other rocks and minerals, but �?barring a few Distinctive situations �?nearly all minerals disguise a crystalline composition beneath the floor.
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。
水晶是有成色等级之分，影响水晶价位的因素很多，不像钻石以4C就可以判定，所以大家要多听多看多比较才能真正辨别出来。一般的标准是水晶石越大越好，越透越好，颜色越娇嫩越好，形状越典型越好。不过最重要还是自己喜欢，而选购时辨识真伪的方法大致有下列几种：
A crystal program refers to the classification of crystals based on the geometric arrangement and symmetry of their lattice structures. There are actually seven most important crystal techniques:
Through the Cambridge English Corpus We say the chain topology while in the higher w area acts as being the proverbial ' scratch-on-theglass ' wanted from the natural and organic chemistry laboratory to produce crystals. In the Cambridge English Corpus Constant-tension and temperature molecular-dynamics simulations of crystals of your lecithin fragments - glycerylphosphorylcholine and dilauroylglycerol. From the Cambridge English Corpus In addition to these, dust particles are already observed in lower-temperature plasmas, like Individuals used in plasma processing and plasma crystals. click here From your Cambridge English Corpus The ultimate Section of the reserve focuses on peculiarities of strongly coupled dusty plasmas, like the development of dust crystals and linked beautiful forces. Through the Cambridge English Corpus Entire characterization of harm threshold in titanium doped sapphire crystals with nanosecond, picosecond, and femtosecond laser pulses. From your Cambridge English Corpus Unbroken crystals are euhedral; rounded, or maybe more irregular, Principal morphologies were not noticed. In the Cambridge English Corpus See all examples of crystal These illustrations are from corpora and from resources online. Any viewpoints during the examples tend not to characterize the opinion in the Cambridge Dictionary editors or of Cambridge University Push or its licensors.
的释�?浏览 cryptologist cryptology cryptorchidism cryptosporidium crystal crystal ball crystal obvious idiom copyright crystalline #randomImageQuizHook.filename #randomImageQuizHook.isQuiz 用我们的趣味配图小测验考考你的词汇量
crystal, any reliable material during which the ingredient atoms are arranged inside a definite sample and whose surface area regularity displays its inner symmetry.
The C60 molecules, also known as buckyballs, are very potent and Just about incompressible. Crystals are fashioned this kind of the balls are arranged in an fcc lattice using a just one-nanometre spacing between the centres of adjacent balls. The very similar C70 molecule has the shape of a rugby ball; C70 molecules also type an fcc crystal when stacked with each other. The strong fullerenes kind molecular crystals, with weak binding—supplied by van der Waals interactions—concerning the molecules.