Not known Factual Statements About Crystal

Not known Factual Statements About Crystal

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17These rings are indicative on the crystal construction of nickel and can be discussed only by invoking wavelike Attributes of light.这些光圈表明了了镍的晶体结构，而且只能通过光线中波的特征来解释。

杂质、裂纹越少越好。质地好的水晶制品，应看不到星点状、云雾状和絮状分布的气液包裹体或组成玉石的颗粒。有裂纹、斑点，则属于次品。

景观水晶，就是包裹体组成各种造型特异的水晶，有的似山水，有的似人物，有些像文字，有些像动物，植物，器物等等。

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C2 [ U ] clear glass of really high-quality, usually with its area Slice into delicate styles:

当二氧化硅结晶完美时就是水晶；结晶不完美的就是石英：二氧化硅胶化脱水后就是玛瑙；二氧化硅含水的胶体凝固后就成为蛋白石；二氧化硅晶粒小于几微米时，就组成玉髓、燧石、次生石英岩。

对任何宝石来说，颜色都是非常重要的，水晶也不例外。如果是水晶晶体是有颜色的，如粉水晶、黄水晶、紫水晶等，其颜色评价的最高标准则是明艳动人，不带有灰色、黑色、褐色等其他色调。如粉水晶，颜色以粉红为佳；紫水晶，要求颜色为鲜紫，纯净不发黑；黄水晶，要求颜色不含绿色、柠檬色调，以金橘色为佳。对于发晶来说，晶体的颜色也是很重要的。相同发丝的金发晶，晶体完全无色（白水晶）和晶体略偏茶色，肉眼的视觉观感也是有差别的，所以前者的价格会高于后者。

1A crystal chandelier lit the area.一盏水晶吊灯照亮了房间。《柯林斯英汉双解大词典》

13Nearly all personal computers include a quartz-crystal clock to control their Procedure.几乎所有的计算机都有一个石英晶体时钟来调节它们的运行。

The definition of the stable appears obvious; a solid is normally regarded as getting difficult and business. On website inspection, nonetheless, the definition gets a lot less simple. A dice of butter, such as, is hard just after getting saved in a very refrigerator and is also Evidently a sound. Just after remaining on the kitchen area counter for each day, the same cube becomes rather gentle, and it can be unclear When the butter need to even now be regarded a reliable.

地质学家目前为止对晶洞形成还没有广泛认同的理论，但相信晶洞可以在任何埋藏的空腔内形成。这些空腔可以是火成岩中的气泡、树根下的空穴，甚至动物挖的地洞。经过漫长时间，空腔的外壁变硬，溶解的矽酸盐或方解石沉积到内壁。再经过漫长的时间，缓慢渗入的矿物使得晶体在空腔内部结晶。

的释�?浏览 cryptologist cryptology cryptorchidism cryptosporidium crystal crystal ball crystal very clear 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 sound substance through which the ingredient atoms are organized within a definite sample and whose surface regularity displays its inside symmetry.

This crystal composition is liable for the exceptional Actual physical and chemical Attributes of sodium chloride, like its higher melting level, electrical conductivity, and skill to form ionic bonds effortlessly.