多形晶

Periodic Table Ⅵ B family had steel gray metallic luster of the solid metal transition elements, two kinds of polycrystalline and single crystal allotrope.

周期表中ⅥB族有钢灰色金属光泽的固体金属过渡元素，有多晶和单晶两种同素异形晶体。

The results showed that the steel slag granule was diminished speedily and the crystal structure changed evidently to amorphism after mechanical finishing, so make the latent activation of steel slag to be activated.

采用机械力化学方法来激活钢渣，通过粒度测试、密度测定、XRD、HRTEM和DSC-TG等诸多现代测试手段进行表征分析发现：钢渣经过行星磨高能机械研磨之后其颗粒大小、晶体结构发生了明显变化，由晶形逐渐向无定形转变，使钢渣的潜在活性被激发出来。

Sylvanite occurs in columnar, tabular and grained forms and assume polysynthetic twin with strong anisotropy and bireflectance.

针碲银金矿呈柱状、板状、粒状晶形，聚片双晶，具强非均质性及双反射和反射多色性，Hv50=216—219 kg/mm2。

The results suggested that compared with A-starch and maize starch, there are more quantities of impurities, such as protein, lipid and pentosan, in B-starch. B-starch prepared in the laboratory almost has the same compositions as three samplings, and accords with the reports of some documents too. Differing from the granules in A-starch, those in B-starch are smaller sized (1-10m)and oval shaped, and felted each other. The crystallogram of A- and B-starch are similar, i.e. A type. There is difference in granular distribution between A- and B-starch. The granular distribution of B-starch is anomalous and extensive (l~1259m).B-starch has bigger dilatancy and retrogradation, and smaller blue value, solubility, viscosity, gelatinization temperature and gelatinization enthalpy.

试验结果表明：跟玉米淀粉、A淀粉相比较，B淀粉含有的蛋白质、脂肪和戊聚糖等杂质数量多；实验室制备的小麦B淀粉中淀粉、粗蛋白、戊聚糖等含量均与文献的报道接近，也与在工厂采样的B淀粉相近；与A淀粉不同，B淀粉以小颗粒的淀粉为主，平均粒径1～10μm，颗粒形状呈椭圆形，同时颗粒和颗粒之间黏结紧密；B淀粉和A淀粉晶形结构相似，都为A型；B淀粉的粒度分布情况不同于A淀粉，其粒度分布规律性不强，分布范围也较宽，粒度在1～1259μm之间；B淀粉的凝沉值和膨润力大于A淀粉，而沉降体积、蓝值、溶解度、粘度、糊透光度、相变温度和热焓均小于A淀粉；杂质的含量对B淀粉性质的影响是明显的，随着杂质含量的增加，沉降体积、溶解度和透光度减小，膨润力增大，但是它们对凝沉值、蓝值和粘度的影响比较复杂。

The seed layer has an intermolecular spacing of 3.4 -0.3 AA. and it is formed by rodlike supramolecules comprised of disc-shaped molecules of at least one polycyclic organic compound with conjugated p-system.

该晶种层具有3.4±0.3的分子间距，并通过由盘形分子构成的棒状超分子形成，该盘形分子至少为一种具有π共轭体系的多环有机化合物。

Organic matrixs coming from cells play role in nucleation, growth, morphology, polymorphology of inorganic materials. This control of organic matrixs are mainly behaved by the interfaction between organic matrix and inorganic materials .The processing of organic matrix controlling inorganic material is called as molecular recognition. The mechanism of organic-inorganic molecular recognition contains three facts such as electrostatic attraction, lattice geometry matching and stereochemical complimentary.

细胞分泌的有机基质在无机矿物的成核，生长，形貌，多型和结晶学定向等过程中起到了调控作用，基质对矿化的这种调控作用具体表现在有机或生物大分子和无机离子在界面上的相互作用，有机质对无机晶体的成核，生长，晶形及结晶学定向等的控制过程称为分子识别，有机-无机界面分子识别机制主要包括静电作用，晶格几何匹配和立体化学互补三个方面。

By mineralogical analysis of Jidong magnetite concentrates what can be found is that: It is mainly composed of magnetite, concentrate grain is medium-coarse granular crystal texture, the most is subidiomorphic or xenomorphic, is chevron and granulated, surface of the concentrate is smooth, minority of concentrate has inclusion or intergrowth, grain inch normally is 0.05~0.16mm, there is incompletely cleavage in concentrate grain.

矿相分析表明：冀东磁铁精矿粉以磁铁矿为主，矿粉颗粒为中粗粒变晶结构，多为半自形或他形，呈尖棱碎粒状，其表面光洁平滑，少数有包裹体或连生体，粒径一般为0.05～0.16mm，矿粒存在不完全解理。

He growth process of silver particles with adsorption time is that the reduced silver precursors coalesces into silver particles, branch-shaped silver particles and larger silver pieces, step by step.

EM观察发现：随吸附时间延长，还原的Ag粒从小颗粒状发展到类树枝状的颗粒并最终形成Ag片；相应的电子衍射图也表明，Ag的结晶聚集体形态变化是：无定形→多晶→大银片。

For example, alkaline elements can affect diffusion velocity of Zr, Si and O ions although these alkaline elements cannot exist in crystal structure of zircon. However, K rich media and Na rich media exert different effects on the growth of crystal form: in the K rich media, growth speed of prism faces in the vertical direction is much higher than that of pyramid faces, and {111} growth speed in the vertical direction is higher than {311},which decides the formation of bipyramids dominated by {311} pyramids; in the Na rich media, both prism and pyramid grow to a certain extent, but the former is smaller than the latter.{100} growth speed in the vertical direction is lower than {110}, while {111} growth velocity in the vertical diredtion is lower than that of {311},resulting in the growth of the crystal form characterized by {100} short prism and {111} pyramid.

例如，尽管碱性元素并不进入锆石晶格，但它们可以影响Zr、Si、O离子的扩散速度，但是富钾和富钠的介质对锆石晶形发育的影响是有差别的，表现为：在富钾的介质中，将导致柱面的法向生长速度较锥面快得多，而锥面中，｛111｝的法向生长又较｛311｝快，由此决定了形成以｛311｝锥为主的双锥状晶体；在富钠的介质中，柱面和锥面都有一定程度的发育，但前者弱于后者，而柱面中，｛100｝的法向生长较｛110｝慢，由此决定了形成以｛100｝柱和｛111｝锥为主的短柱锥状晶体。

Products involving rough, drawing, extubation reduced strokes, straight rod, shaped, natural diamond, polycrystalline modulus as well as bicycles, sewing machines dedicated mold standard parts, odd-shaped molds for diverse species, is strong in technology have advanced equipment to improve its service life Detected are 30 times more than high-speed steel, non-disposable, can be used many times to repair, after repair the same life expectancy.

产品涉及毛坯、拉丝、拔管缩杆、直杆、异形、天然钻石、聚晶模以及自行车、缝纫机标准件的专用模具、奇形模等多样品种，力量雄厚工艺设备先进，检测完善它的使用寿命是高速钢的30多倍，非一次性，可多次修复使用，修复后寿命不变。

I am accused of being overreligious," she said in her quiet, frank manner,"but that does not prevent me thinking the children very cruel who obstinately commit such suicide.""

客人们在卡罗利娜·埃凯家里，举止就文雅一些，因为卡罗利娜的母亲治家很严厉。

Designed by French fashion house Herm è s, this elegant uniform was manufactured in our home, Hong Kong, and was the first without a hat.

由著名品牌 Herm è s 设计，这件高贵的制服是香港本土制造，是我们第一套不配帽子的制服。