成层了的

This problem dates back to 1611, when Johannes Kepler conjectured that the best packing arrangement for identical spheres was arranging them in what is now called face centered cubic packing - similar to how one sees cannon balls stacked.

这个问题可追溯到1611年约翰尼斯·开普勒提出堆积等大球体最佳方法的猜想（译者注：当等大球体按照--球心位于正方体各面的中心上--的形式，并且将第一层摆放成六角形时，它们占用的空间最小，对空间的利用率可以超过74%），现在把这个方法叫做面心立体堆积法--类似于加农炮弹的堆积方式。1998年，安娜堡密西根大学教授托马斯·C·黑尔斯证明了这个猜想。

But normal pre-stack migration imaging method could not meet the need of exploration in great fault with big obliquity and strong anisotropism glutenite body.Pre-stock time migration processing technology could be applied in studying on pre-stack migration pre-processing technology, establishing final velocity model and electing key parameters.

采用叠前时间偏移处理技术，开展针对性的叠前预处理技术、精细的速度模型建立和关键参数的合理选取等研究，三维叠前时间偏移处理较常规三维叠后时间偏移处理获得了较高质量的成像剖面，且输出的道集可以用于砂砾岩体储层描述研究。

The continuously growing incisor of the rodent is subdivided into a crown analog half on the labial side, with a cervical loop containing a large core of stellate reticulum, and its progeny gives rise to enamel producing.

啮齿类动物的切牙可以终生生长，它被分为了牙冠发育模式的唇侧和牙根发育模式的舌侧，唇侧的上皮包括一个颈环结构，其内含有星网状层细胞，可以不断的分化为成釉细胞并形成釉质。

This paper is focusing on the setup of non-contact automatic measurement for the end face of fiber connector by applying micrography and image processing technology.

介绍了一个基于显微成像和数字图像处理技术的非接触式光纤连接器端面自动检测系统：待测的光纤连接器固定于显微平台上，CCD接收显微物镜放大的图像并输入计算机中，然后由系统软件自动对图像进行对比度增强，二值化，平滑去噪，图像分割等处理，从而分析计算出纤芯、包层的各项几何参数。

This paper reviews the conventional models for the formation of marginal compositional reversals,including wall-rock contamination,multiple injection,compositional stratification of magma,high degree of supercooling,crystal settling of phenocrysts,flow differentiation,compositional convection and upward decrease in amount of intercumulus liquid.

朱丹，罗泰义，宋谢炎，徐义刚，陶琰，黄智龙，基性-超基性岩浆成岩和成矿过程中Soret效应的研究进展综述了当前对基性-超基性岩床和层状岩体的边缘反转现象的传统解释模型，包括围岩混染、岩浆多期注入、岩浆分层、过冷却、晶体沉降、流动分异、结晶和成分对流以及逐渐减少的颗粒间熔体量。

The main components of every ommatidium of compound eye were completed in the larval stages. An ommatidium composed of cornea, four corneagenous cells, four cone cells and retinular cells. The sensitization system of an ommatidium included 11 retinular cells, of which four located at the distal part of the ommatidium; seven formed the proximal main part of the retina. Their structures are different.

小眼的感光系统由11个小网膜细胞组成，且与成体一样，11个小网膜细胞已经分化成4+7两层，其中4个小网膜细胞构成了感光部分的远端，7个小网膜细胞构成感光系统的近端主体，远端和近端的小网膜细胞在结构上也有明显差异。

In our example one of the seven graft were revealed about 75 %- 90 % stenosis, others show patency.

近年来迅速发展的多层螺旋CT的心脏冠状动脉成像为冠心病提供了新的检查方法并显示出良好的发展前景。

The present invention adopts polyvinyl perchloride and organosilicon modified acrylic resin as main filming material and adds cyanuramide phosphate and expanding graphite into common polytriammonium phasphate as fireproof assistant to constitute foaming material. The present invention has greatly raised foaming rate and the foamed layer has thickness of 30-50 times the original coating thickness and fireproof limit up to 90 min.

本发明采用高氯化聚乙烯和自行合成的有机硅改性丙烯酸酯树脂为主要成膜物质，并在通常所用的聚磷酸铵类防火助剂的基础上，加入三聚氰胺磷酸盐和可发性膨胀石墨作为发泡材料组成，大大提高了涂层的发泡率，发泡层厚度可达原涂层厚的30～50倍，耐火极限可达90min(涂层厚度2mm)。

The mansion had three large, handsome public rooms, a big kitchen, and a little breakfast room on the first floor; a spacious basement, which we converted into a rec room complete with pinball machine; and living quarters on the second floor.

官邸的一层有三个又宽敞又漂亮的公用房间，一间厨房，还有一个很小的早餐室。地下室的空间很大，我们把它改成了一个康乐房，里面配有弹球机。生活区在二楼。

X. Multi-functional ceramic pot using imported Australian spodumene Jingdezhen and high-quality kaolin as the main raw materials, combined with superb Jingdezhen porcelain process, the 1320 degree heat and then fired the use of patented technology in ceramics by 800 degrees at the bottom of the outer layer of burning metal-ceramic guide Membrane from which the total elimination of the ceramics can not be limited to the use of induction cooker, allow people to the full enjoyment of scientific and technological progress brought about by the new concept of cooking healthy way of eating green.

多功能陶瓷煲采用澳大利亚进口锂辉石和景德镇优质高岭土为主要原料，结合景德镇精湛的制瓷工艺，经1320度高温烧制后又利用专利科技在陶瓷外底部经800度烧制一层导瓷金属膜而成，它彻底消除了陶瓷不能在电磁炉上使用的局限，让人们充分享受科技进步所带来的全新的烹饪理念健康环保的饮食方式。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。