查询词典 crystal lattice

The results show that the interplanar crystal spacing and lattice index of Al-rich α phase reduce gradually with increasing pressure. When the pressure reaches from common pressure to 5 GPa , Al-rich α phase lies on the (200) and (220) crystal faces, the interplanar crystal spacing are reduced by 1.07% and 1.15%. From common pressure to 3 GPa , the microstructure of ZA27 alloy changes from thick dendrites to fine dendrites, and finally to granular. According to the effect of solute diffusion coefficient under super high pressure and the calculation of Scherrer formula, it can be seen that the crystal organization is fine within the bounds of certain pressure. This conclusion is consistent with the experiment results.

结果表明：随着压力的增加，晶面间距和晶格常数都逐渐减小，当压力达到5 GPa时，富铝α相在(200)与(220)晶面处，晶面间距较常压力时的分别减小1.07%和1.15%；在常压至3 GPa范围内，晶粒由粗大的树枝晶→细小的树枝晶→粒状、椭球状枝晶转变的趋势，通过压力对合金凝固溶质扩散系数的影响结合Scherrer公式计算分析其组织变化原因，得出在一定的压力范围内，随着压力的增大，晶粒尺寸逐渐变小，这一结论与实验结果相符。

With the Jinshan gold deposit in Jiangxi Province as an example, the authors determined the crystallinity, mean crystal size and lattice strain of illite and chlorite and, on such a basis, discussed the difference of crystallinity, mean crystal size and lattice strain between illite and chlorite caused by deformation of mylonite and untramylonite.

本文以江西金山金矿为例，通过对热液蚀变粘土矿物伊利石和绿泥石结晶度、平均结晶大小和晶格应变的测定，讨论了岩石变形对伊利石和绿泥石结晶生长差异的影响。

The irregular variation of lattice constants of the a-LiIO3 single crystal originated in the growth process and the fluctuation phenomena of lattice constants under the action of an electrostatic field were investigated by an X-ray double-crystal spectro-meter in the arrangement.

本文用X射线双晶衍射平行排列的方法，观察了α-LiIO_3单晶体生长过程点阵常数a与c不规则的不均匀性以及在静电场作用下c的起伏现象。观测出在静电场作用下a与c的变化和沿电场方向晶体表面层存在点阵常数的梯度。

The results from electron micrographic analysis show that soot oxidation is influenced by aggregation and agglomeration of soot particulates, at the same time, the crystallograms show that the previous soot particle is non-crystal carbon, but in the latter conbustion period, a very small amount of crystal soot with unstable lattice at relatively higher flame temperature is formed. The crystallization happens greatly in period of combustion when temperature is relatively lower. The smoke particulates consist of crystal carbon similar to chaoite crystal latice and noncrystal carbon.

碳粒浓度和KL变化曲线表明预混合火焰中碳粒浓度远远小于扩散火焰，其原因在于不均匀的燃油—空气混合气结构在高温缺氧条件下产生大量碳粒，在温度峰值附近碳粒浓度亦达到峰值，其后迅速氧化，当温度低于2000°K时碳粒基本上不氧化，碳粒的电子显微分析表明碳粒的氧化受碳粒的集聚过程的影响，在燃烧初期碳粒是非晶体，碳粒的结晶在燃烧后期和排放过程中大量出现，排放碳烟微粒由晶体和非晶体碳组成。

The many lattice twist and dislocations can be observed by the studies on high-resolution electron microscopy of solution-crystallized PEKK crystals. It is the lattice twist and dislocations within crystals that give rise to gradual branching and narrowing of spherulitic lamellae towards to tips of crystal growth and consequently, the characteristics of morphology and crystal structure of poly s can be posed in the molecular level.

通过其高分辨电子显微像的研究，直接观察到了组成晶体的点阵扭曲和位错，并揭示出由分子链的堆砌错误引起的点阵扭曲和位错是导致球晶晶片展现出连续的分叉并向着晶体的增长前沿逐渐变窄的直接原因，从分子水平上揭示了聚芳醚酮酮的结晶形态的特点。

We note from the further studies that in the crystals, which sharing the similar crystal structures and coordinational environments, the magnitude of the Stokes shift of the luminescence of the dopant ion is in line with the average covalency of the replaced lattice site. This is because that the nature of Stokes shift is the energy transfer from the luminescent ion to the host lattice. The value of this energy is determined by the frequency of the host lattice in which the frequency is controlled by the chemical bond characters.

更深入的研究发现，在晶体结构和中心离子配位环境非常相似的系列晶体中，掺杂离子发射光的Stokes位移值与其所取代格位的平均共价性成正比的关系，这是由于Stokes位移的本质是发光离子在发光过程中向基质以光波辐射的形式传递能量，这一能量的大小是由基质的振动频率决定的，而基质的化学键性质恰恰决定着基质的振动频率。

Some drug substances exist in several different crystalline forms ("polymorphs"), due to a different arrangement of molecules in the crystal lattice, which thus show distinct differences in their physical properties.

由于晶体点阵的分子排列不同，一些原料药以几种不同的晶型存在，这样他们显示了不同的物理性质。

These two elements precipitate into otoliths crystal lattice or interstitial to substitute for calcium (Ca2+) in vaterite or aragonite. The precipitation of otoliths is controlled not only by biological regulatory, but also influenced by environmental factors, such as: element concentration, salinity, temperature of ambient water, food intake, etc.

耳石结晶沉淀的整个过程不仅受生物的调控作用，而且还受到外界环境，如水体元素浓度、盐度、温度等因素的影响，因此耳石中某种元素的浓度与其在水体中的浓度之比与鱼类所生存的环境之间具有一定的响应关系。

The zirconium ions can insert into the crystal lattice of tin oxide to form uniform solid solution.

催化剂在长时间水蒸汽处理和高温焙烧后依然保持较高的NO转化活性。

When above Curie temperature, crystal lattice occurs at the high-resistance layer and the ferroelectric constant decreases quickly. The potential barrier increases because the dielectric constant drops in accordance with the Curie-Weiss Law.

但在居里温度以上时，高阻层发生晶格转变，铁电性消失，介电常数急剧减小，由于介电常数按居里-外斯定律下降，所以势垒随之升高。

Fancy gold-plated dangling earrings with facetted White Opal crystals.

花式镀金悬垂耳环与facetted白欧泊水晶。

This essay chooses the study aim from biology teachers in middle school in Shi Jiazhuang which tells us that most of the middle school biology teachers in Shi Jiazhuang have the"burnout", lower successfulness, individualize.

本文选取石家庄市初中生物教师作为研究对象，运用问卷调查的方法对石家庄市初中生物教师职业倦怠的现状进行调查，调查结果发现，石家庄市初中生物教师这一群体普遍存在职业倦怠，情感枯竭程度偏高，成就感偏低，去个性化程度最为严重。