27Local economists have appeared into their crystal balls and seen anything relatively horrible.当地的经济学者们已预测到将会出现棘手的问题。《柯林斯英汉双解大词典》
Bismuth (Bi) seems to generally be a metallic, but the volume of electrons available for electrical conduction is analogous to that of semiconductors. In reality, bismuth is known as a semimetal. Molecular solids are frequently crystals shaped from molecules or polymers. They may be insulating, semiconducting, or metallic, according to the variety of molecules within the crystal. New molecules are continually getting synthesized, and a lot of are made into crystals. The volume of diverse crystals is big.
Chemical Bonds The kinds of chemical bonds formed among atoms or groups of atoms in crystals depend upon their dimensions and electronegativity. You can find 4 groups of crystals as grouped by their bonding:
看原料：选料精良的水晶制品，应看不到胶口及棉絮；质地纯净、光润、晶莹为好。
《全唐诗》卷七八五载《白雪歌》：“鸟啄冰潭玉镜开，风敲檐溜水晶折。”
, has a similar framework, but There are 2 selections for choosing the holes the atoms will occupy. The 3rd layer may be put more than the atoms of the first layer, building an alternate layer sequence A
水晶原石观赏石，从字面意义理解：观赏水晶石的原貌，即经过抛光去皮后的包裹体水晶和原色水晶，不需雕刻不求象形就具有非常高的观赏价值和收藏价值。此类水晶观赏石对质地要求非常之高，水晶晶体通透干净，颜色艳丽，意境鲜明深刻的价值就高，它的价值特点就好比钻石，实实在在石头本身的价值。
You will find there's identical directive about crystal glass which differentiates among full direct crystal, lead crystal and crystal.
包裹体常见有固相、固液气三相组合、空洞以及双晶、色带等。水晶中典型的同生包裹体有自形的锐钛矿、气液两相包体等。
Solids which have quick-vary get but absence prolonged-range order are termed amorphous. Virtually any content could be produced amorphous by fast solidification through the soften (molten point out). This condition is unstable, as well as the strong will crystallize in time. When the timescale for crystallization is decades, then the amorphous condition appears secure.
say cheese something which somebody who is getting a photograph of you lets you know to say so that the mouth tends to make The form of a smile
的释�?浏览 cryptologist cryptology cryptorchidism cryptosporidium crystal crystal ball crystal crystal 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
14For illustration, We've Quartz crystal clocks and watches exact to within just one particular moment a yr.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。
crystal Alteration is variable: absent in lots of crystals, in Other individuals producing dense sericite aggregates which may demonstrate some recrystallization effects to provide coarser-grained white mica. From your Cambridge English Corpus The tridymite crystals are rectangular or wedge-shaped and are sometimes organized in aggregates. In the Cambridge English Corpus In addition, haloarchaeal cells ended up embedded inside salt crystals underneath laboratory situations and subsequently analysed by light microscopy. In the Cambridge English get more info Corpus The white clouds (generally sparse) have been also widely considered to be remaining made up of tiny crystals of drinking water ice, somewhat like cirrus in our environment. In the Cambridge English Corpus They are really found in evaporite salt lakes and might be trapped in salt crystals throughout evaporation. With the Cambridge English Corpus Consequently, the cells (organelles and membranes) are ruined mechanically by ice crystals, leading to Dying as a result of mobile lysis. Within the Cambridge English Corpus The crystals had been Employed in the initial or 2nd orders of reflection. Within the Cambridge English Corpus Within our 8xperiments, the crystals have been cubes using a foundation location of 8 e mm. From your Cambridge English Corpus Vibration-assisted intermolecular hydrogen tunneling in photoreactive doped molecular crystals : outcome of temperature and pressure.