5 Simple Statements About Crystal Explained
5 Simple Statements About Crystal Explained
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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。
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A essential concept in crystal structures would be the unit mobile. It's the smallest device of quantity that allows identical cells to generally be stacked together to fill all Room. By repeating the sample of the device cell over and over in all Instructions, the complete crystal lattice could be made. A dice is the simplest example of a device mobile. Two other illustrations are demonstrated in Figure 1. The initial could be the unit cell to get a face-centred cubic lattice, and the 2nd is for a body-centred cubic lattice. These constructions are defined in the following paragraphs.
Fig. 7: A template-directed method can Regulate The location of setting up blocks on the floor from the formation of complex structures.
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。
第二种是“半包裹体”,在水晶结晶以后,由于受到地球引力的影响而产生的裂隙,晶体外的一些物质通过水晶的裂隙渗透到水晶内部,一部分包裹于水晶之中另一部分露于水晶之外。我们可以看到物质渗进水晶的裂迹,常被称为“通道”,这种包裹体所形成的景象相对地较受自然环境和时间的影响,相应的价值也比较�?。
水晶内部有多种矿物包裹体,形成的各种景观可以肉眼观测,这样的水晶就是包裹体水晶观赏石。由于水晶本身就是宝石,因此人们称誉包裹体水晶为“宝石级的观赏石”。包裹体水晶观赏石都具有独特性,具有极高欣赏和收藏价值。
26Some of the finest consuming Eyeglasses are created from guide crystal.一些最精致的酒杯是用铅晶质玻璃制成的。《柯林斯英汉双解大词典》
Crystals tend to be viewed as a thing of huge elegance, and so they are generally applied with diamonds or other stones to generate pieces of jewellery. Many crystals now are guy-manufactured in laboratories.
颜色:无色,浅至深的紫色,浅黄、中至深黄色,浅至深褐、棕色,绿至黄绿色,浅至中粉红。
Through the Cambridge English Corpus We are saying the chain topology while in the substantial w area acts since the proverbial ' scratch-on-theglass ' needed during the organic and natural chemistry laboratory to generate crystals. Through the Cambridge English Corpus Continuous-stress and temperature molecular-dynamics simulations of crystals in the lecithin fragments - glycerylphosphorylcholine and dilauroylglycerol. From your Cambridge English Corpus Along with these, dust particles have been noticed in low-temperature plasmas, like People Employed in plasma processing and plasma crystals. From the Cambridge English Corpus The final Component of the guide concentrates on peculiarities of strongly coupled dusty plasmas, like the development of dust crystals and involved desirable forces. With the Cambridge English Corpus Finish characterization of damage threshold in titanium doped sapphire crystals with nanosecond, picosecond, and femtosecond laser pulses. Within the Cambridge English Corpus Unbroken crystals are euhedral; rounded, or more irregular, primary morphologies were not noticed. Through the Cambridge English Corpus See all examples of crystal These illustrations are from corpora and from resources on the web. Any opinions in the examples will not symbolize the viewpoint on the Cambridge Dictionary editors or of Cambridge University Push or its licensors.
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。
The construction from the sodium atoms alone, or the chlorine atoms by itself, is fcc and defines the unit mobile. The sodium chloride framework So is designed up of two get more info interpenetrating fcc lattices. The cesium chloride lattice (Determine 3A) is predicated around the bcc framework; every single other atom is cesium or chlorine. In such a case, the unit mobile is really a cube. The 3rd significant construction for AB
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