Top latest Five Crystal Urban news
Top latest Five Crystal Urban news
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天然的水晶一般都会有絮状(绵绺),也就是大家俗称的瑕疵,这是液体水落石出和二氧化碳的小孔穴,而人工合成的水晶就不会有这样的特征。
Bismuth (Bi) appears being a metallic, but the amount of electrons available for electrical conduction is similar to that of semiconductors. In reality, bismuth is called a semimetal. Molecular solids are often crystals shaped from molecules or polymers. They may be insulating, semiconducting, or metallic, depending upon the type of molecules during the crystal. New molecules are continually getting synthesized, and plenty of are created into crystals. The volume of distinctive crystals is enormous.
看做工:水晶制品加工过程分为两种,即磨工和雕工。如水晶项链、手链、耳环等属于研磨品;观音像、内画鼻烟壶等属于雕刻品。
Encyclopaedia Britannica's editors oversee matter areas during which they may have substantial know-how, whether from many years of expertise received by engaged on that material or via review for a sophisticated degree. They write new content and verify and edit information been given from contributors.
看抛光:抛光的好坏直接影响到水晶制品的身价。抛光分为软抛光与硬抛光。
These examples are from corpora and from sources on the internet. Any thoughts from the examples will not depict the opinion in the Cambridge Dictionary editors or of Cambridge College Push or its licensors.
时尚的收藏爱好者喜欢收藏天然水晶,却常常因为在市场上面对大量的合成水晶看走了眼。市面上的水晶:
Ionic Crystals: Electrostatic forces sort ionic bonds. A typical instance is actually a halite or salt crystal.
24I need to make my meaning crystal obvious.我想把我的意思解释得清清楚楚。《牛津词典》
22Working from what The read more us already is familiar with about itself, the bureau's industry experts and other demographers provide an irresistible, if clouded, crystal ball amongst their visions.
16I opened the box and noticed a piece of crystal snowflake as well as a greeting card with "Satisfied Birthday" in the blank paper.我打开盒子并看见在白纸中有一片水晶雪花和一张写着“生日快乐”的贺卡。
Crystals are don't just renowned for their physical overall look, but distinct crystals of various components and formations may lead to an enormous a number of uses and Actual physical properties.
14For case in point, We now have Quartz crystal clocks and watches accurate to in just a person minute a 12 months.例如,我们使用的每年误差不超过one分钟的石英水晶钟表和手表。
Sensible Vocabulary: relevant phrases and phrases Geology: mineralogy beneficiation crystalline deposit gemologist gemology gold dust graphite idiomorphic intercrystalline like gold dust idiom magnesium mineral nugget pyrite quasicrystal seam silicon unmined vermiculite vulcanicity See a lot more results » You can even find connected terms, phrases, and synonyms while in the subjects: