The 5-Second Trick For Crystal
The 5-Second Trick For Crystal
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17These rings are indicative on the crystal composition of nickel and may be discussed only by invoking wavelike Homes 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。
Crystals are attractive rock formations which have surprised individuals for 1000s of many years. They're used for a lot of various things, not only for decoration. Lots of the first radios at any time invented applied crystals to transmit the radio waves. Some instruments, like quartz watches and laser crystals, use Specific Houses and harmonic abilities of crystals to generate remarkably exact measurements and adjustments.
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。
Most solid resources found in mother nature exist in polycrystalline sort as opposed to as just one crystal. They are actually composed of a lot of grains (compact crystals) packed with each other to fill all Place. Each individual person grain has a unique orientation than its neighbours. Even though extensive-assortment buy exists within just one grain, at the boundary among grains, the purchasing changes course. A normal bit of iron or copper (Cu) is polycrystalline.
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。
Lattices can have just one lattice point for every cell or multiple, yielding a total of 14 Bravais crystal lattice styles. Bravais lattices, named for physicist and crystallographer Auguste Bravais, describe the 3-dimensional array made by a set of discrete factors.
Crystals glimpse special from a number of other rocks and minerals, but �?barring several Unique circumstances �?nearly all minerals conceal a crystalline framework underneath the surface area.
11I cautiously opened the offer and found a crystal bell within.我小心地打开包裹，发现里面有一个水晶钟。
Metallic Crystals: Metals frequently form metallic crystals, in which many of the valence electrons are totally free to move all through the lattice. Iron, for example, can type unique metallic crystals.
⑤化学稳定�?非常好，在常温下仅溶解于氢氟酸，不溶解于其它各类酸、碱。在高温高压条件下可溶解于碳酸钠溶液中。
All crystal ball crystal distinct copyright liquid crystal crystal lattice crystal construction liquid crystal display See all meanings Idioms and phrases crystal obvious idiom
You will discover only a few different device-mobile shapes, so many alternative crystals share a single unit-cell sort. An important characteristic of a device mobile is the number of atoms it is made up of. The total variety of atoms in the entire crystal would be the selection in Each individual cell multiplied by the volume of unit cells. Copper and aluminum (Al) Every have one atom for every unit cell, even though zinc (Zn) and sodium chloride have two. Most crystals have only a few atoms for every device cell, but there are numerous exceptions. Crystals of polymers, one example is, have 1000s of atoms in Each individual device cell.
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Tetragonal �?Characterised by three mutually perpendicular axes, two of that happen to be equivalent in duration, while the third is extended or shorter and perpendicular to the opposite two.