New Step by Step Map For Crystal
New Step by Step Map For Crystal
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17These rings are indicative from the crystal framework of nickel and may be described only by invoking wavelike Qualities 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。
the strong condition of many very simple substances, that have an everyday form and surfaces arranged in similar patterns
人造水晶分为熔炼水晶与养殖晶：据水晶专家汪毅的阐述，随着水晶的价值提高，喜欢的人增多，水晶也引起了作伪者的兴趣，现阶段中国水晶市场常见的造假方法为：
Tetragonal: These crystals form prisms and double pyramids. The construction is sort of a cubic crystal, except just one axis is for a longer time than another.
根据美国已经了解的情况，统计局的专家和其他人口统计学家在他们的视野中提供了一个不可抗拒的水晶球。
These examples are from corpora and from resources on the internet. Any thoughts inside the examples will not represent the opinion of the Cambridge Dictionary editors or of Cambridge College Press or its licensors.
水晶与高档宝石的净度要求有很大不同。高档宝石稀少罕见，所以一般人们普遍对高档宝石的净度不会过于苛求。而水晶的产量着实大得惊人，所以通常人们会要求水晶净度越高越好，尽量避免有较明显的内含物的水晶。
Crystals is usually developed less than moderate disorders from all ninety two Normally developing things besides helium, and helium is usually crystallized at low temperatures by utilizing 25 atmospheres of strain.
Several crystals behave like butter in that they are tricky at reduced temperatures but smooth at bigger temperatures. click here They're known as solids whatsoever temperatures beneath their melting point. A doable definition of a solid can be an object that retains its shape if remaining undisturbed. The pertinent situation is how long the item keeps its form. A remarkably viscous fluid retains its form for one hour but not a yr. A stable have to hold its condition for a longer period than that.
英语-中文（简体） word #beta Beta /beta #preferredDictionaries ^chosen identify /picked /preferredDictionaries
被主体水晶所捕获的包裹体。原生包裹体通常为固相，形态较规则。水晶中典型的原成包裹体有金红石、电气石、黄铁矿等，也会见到岩石碎屑或集合体。
正常的水晶在生长时，多可以发现和柱形尖端棱线平行的生长纹（progress lines）。由于在地底、岩洞中的生长空间多狭窄，尤其在遇到地震时，或地壳变动时，甚至容易遭到其他矿石的挤压，常常会压迫产生不同的「晶面」。还有，当水晶还是在液态状的时候，常常也会包覆着其他的矿石、泥灰一起结晶成长，如金红石（稍后变成发晶）、火山泥灰（稍后变成幻影水晶）等等。所有的这些，都是「自然的一部分」，请不要视为「瑕疵」。
水玉：中国最古老的称法叫水玉，意谓似水之玉，又说是 �?千年之冰所�?�?。唐代诗人温庭筠《题李处士幽居》写道：�?水玉簪头白角巾，瑶琴寂历拂轻�?”。水玉一词最早频繁出于《山海经》：�?又东三百里，日堂庭之�?…�?多水�?”；�?丹山出焉，东南流注于洛水，其中多水玉 ”；�?逐水出焉，北流注于渭，其中多水玉 ”。司马相如《上林赋》曰�?�?水玉磊河 �?。水晶得名水玉，古人是看�?�?其莹如水，其坚如�?�?的质地。
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