Not known Factual Statements About Crystal

Not known Factual Statements About 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。

A crystal composition concentrates on how the atoms are arranged inside the crystal. On the other hand, crystallographers are interested in the general form and size of your crystal and also its exterior features. To accomplish this, they have to know about the crystal process.

诗中道出一段唐代由盛变衰的史实。玄宗末年，杨贵妃得宠，三姐妹并封为国夫人。他们养尊处优，奢华至极，仆人用水晶盘将珍馐佳肴端到宴席上，美人觉得没有口味，懒得动筷子。作为“诗圣”作为“史诗”，紫驼一段写饮食之精美，不空发议论，只尽情揭露事实，无一刺讥语，无一慨叹声，却使人于以外得之：此诗之善讽也。以史为鉴，这样的世道，这样的人物，国家不出“安史之乱”那样的大祸反倒不正常了。

2She was sporting a strand of crystal beads.她戴着一串水晶珠子。《柯林斯英汉双解大词典》

Learn how the shape with the crystals decide the various minerals into familiesMinerals crystallize In accordance with one among seven motifs, often known as crystal devices.

30Three days went previous, and I had been stunned to find out it again: all of the openings had been sewed up by skinny and white thread and so they looked just like the ice crystal on Winter season's branches within the north.

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。

Lots of crystals behave like butter website in that they are tough at reduced temperatures but gentle at increased temperatures. These are identified as solids in any respect temperatures down below their melting position. A feasible definition of the sound is an item that retains its condition if still left undisturbed. The pertinent problem is how long the thing retains its condition. A very viscous fluid retains its condition for an hour but not a year. A reliable need to keep its form extended than that.

⑤化学稳定�?非常好，在常温下仅溶解于氢氟酸，不溶解于其它各类酸、碱。在高温高压条件下可溶解于碳酸钠溶液中。

There are two these kinds of feasible periodic arrangements. In Every, the very first layer has the atoms packed into a airplane-triangular lattice in which each and every atom has 6 fast neighbours. Determine two reveals this arrangement to the atoms labeled A

的释�?浏览 cryptologist cryptology cryptorchidism cryptosporidium crystal crystal ball crystal distinct 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

压电性：水晶晶体受到压力时会产生电荷；反之，受到电压作用时，晶体会产生频率很高的振动。水晶具有可使压力与电荷相互转移的性能，称压电性。

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。