5 Simple Statements About Crystal Explained
5 Simple Statements About Crystal Explained
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水晶表面坑洼的地方,有的深,有的浅,这是水晶在成长过程中自然形成的,并非是人为造成的损伤。缺陷位置本来包有其他矿物晶体,由于包裹体和水晶结合部位的结合力不强,当表面抛光时,矿体脱落,留下空位。这种缺陷在绿幽灵、钛晶、金发晶上都比较常见。
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。
水晶文化历史悠久,古人曾赋予它一串极富美感的雅称:水玉、水精、水碧、石英等。
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。
25If you are a Billy Crystal enthusiast, you may like this movie.如果你是比利·克里斯特尔的影迷,你就会喜欢这部电影。《柯林斯英汉双解大词典》
These illustrations are from corpora and from resources on the internet. Any views within the examples never symbolize the opinion with the Cambridge Dictionary editors or of Cambridge University Push or its licensors.
30Three days went past, and I had been astonished to find out it once again: the many openings were sewed up by slim and white thread and they appeared just like the ice crystal on winter's branches while in the north.
1A crystal chandelier lit click here the room.一盏水晶吊灯照亮了房间。《柯林斯英汉双解大词典》
13Nearly all computers include a quartz-crystal clock to control their operation.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。
[ C/U ] clear glass of high quality, ordinarily with its surface area Slash into patterns that reflect gentle
⑥、丝印:水晶表面附有不同的色料进行效果处理,颜色层面较厚,着力后方可脱落。
水晶形成后由于外力作用或某种人为原因使水晶产生大的裂隙或裂纹,这种裂纹有大有小,对水晶的影响也有大小之分。
crystal, any strong content during which the part atoms are arranged inside of a definite pattern and whose surface regularity demonstrates its inside symmetry.
Tetragonal �?Characterised by 3 mutually perpendicular axes, two of that are equal in size, although the 3rd is for a longer period or shorter and perpendicular to the opposite two.