堆积

The porosity for cubical packing is 47.6 per cent, and that for rhombohedral is 25.96 per cent.

立方形堆积和孔隙度为47.6%，菱形堆积的孔隙度为25.96%。

Therefore, the following works was conducted: 1 Setting up different types combination failure model of ice sheet interaction with semi-breakwater, and considering different actual conditions of crushing, bending and bucking failure in the process of ice pileup when ice sheet acts on the semi-breakwater; 2 Applying analysis of non-continuous transmutation for the numerical simulation. This method is a new numerical analysis method of simulating mechanics response of dispersoid, it has a broad application prospect for the simulative questions of ice sheet moving, deforming, breaking and circumvolving after ice sheet occur pileup.

为此，具体进行： 1 建立冰排作用于半圆堤时的不同破坏类型的组合破坏模式，能够考虑到半圆型防波堤前海冰堆积过程中，由于水位的变化和堤前冰块堆积到一定程度在低水位时触底，冰排作用于半圆堤时可能会发生弯曲、挤压、压曲等不同类型的破坏的实际情形。

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。

There are two types of coal formation: a local land accumulation in which the original substance of rotten plant material congregates in a peat bog where plants are growing; b distant land accumulation in which the original substance, which is from nearby areas or somewhere distant, of rotten plant coal congregates in a fresh water basin, lagoon, delta or lake through movements.

成煤原始物质的堆积方式分为2大类型：原地堆积——腐植煤的原始物质聚集在泥炭沼泽中植物自身繁殖的地方；异地堆积——腐植煤的原始物质是从相邻地区或大陆更远的一些地段，经过搬运，聚集在淡水盆地、泻湖、三角洲、湖泊之中。

But, the crust rocks (included to accumulating complex, sheeted sill complex and lava) is formed by crystallization of the magma. The different rock associations of pyroxenite gabbro and troctolite gabbro in the accumulating complex are related to depth of formation of magmatic chambers and oxidation state of magma in the spreading ridge.

而壳层岩石(指堆积杂岩、岩墙杂岩、熔岩)则是由岩浆结晶作用形成的；堆积杂岩中出现辉石岩辉长岩和橄长岩辉长岩的不同岩石组合则与堆积岩岩浆房出露的深度和氧化状态有关。

This paper aims at the characteristics of conceptual twophase resistance of debris flow. It uses the conceptual twophase resistance for a static analysis on accumulation state of debris flow. As a result,a formula for accumulation state of debris flow in general condition is presented.

针对泥石流的结构两相阻力特征，采用结构两相阻力对泥石流的堆积形态进行了静力学分析，推导出在一般条件下泥石流堆积形态的公式，并讨论了在不同条件下泥石流堆积形态的特点。

Within sampling depth,accumulation rate ranges from 0.02mm/a to 2.58mm/a for these sections,and a significant erosional/depositionalhiatus is identified for two natural sections.

在取样的深度范围内，所测剖面的堆积速率从0.02mm/a到2.58mm/a，并显示一般风成黄土的堆积速率要比水成堆积物的堆积速率要慢。

The lithologic characters changed from fluviolacustrine sandstone to aeolian Red Clay with thin interval of greyish-white sand layers at the depth of 602 m. It can be inferred from the rock strata and age that the development age of aeolian sequence in Lanzhou area was 7 Ma at least, which is in accordance with the bottom age (7~8 Ma) of the aeolian sequence of the eastern and central Loess Plateau, suggesting that their accumulation processes are unitary.

皋兰山剖面深度602 m处出现由河湖相砂岩向以风成红粘土为主常夹有薄层砂岩的地层转变，通过岩性地层及年代的推断，兰州地区的风尘序列堆积发育的年代至少为7 Ma，与黄土高原风尘序列堆积底界8～7 Ma基本一致，说明了兰州地区与黄土高原在风尘序列堆积过程中具有统一性。

Furthermore, the one-dimensional complexes 26 and 28 with strongπ-πpacking interactions are prepared from DMF solvent, which indicates that the traditional solvent volatilizing method could bring low-dimensional complex.4. By measuring the enthalpy changes of the liquid phase formation reaction for complexes a~e, and calculating the electronic densities of five 5-substituted derivation of isophthalic acid, we can make a conclusion that 5-substituted group changing of the ligand has a little influence on oxygen atoms of carboxyl groups.5. Fluorescence experiments of these complexes indicated that they could be used for luminescence materials in future.6. Using packing saturation rule we calculated and analyzed these series of complexes, and the results showed that the changes of complexes with changes of ligands could be explained from the rule.

在DMF溶剂中得到了具有强π-π堆积作用力的一维配位聚合物[Ln(5-NO_2-bdc)(NO_3)]Ln=Pr(26和Ho(28)，表明传统的溶剂挥发合成条件可以得到低维的配合物。4、通过配合物a～e的液相生成反应焓的测定，以及配体阳离子的电子密度计算，进一步佐证了间苯二甲酸的5位取代基变化对配体的羧基氧原子配位能力影响不大的结论。5、荧光特性表明此类配合物可以用于发光材料。6、利用堆积饱和规律对所得系列的配合物的进行计算和分析，发现随着配体的变化，配合物的变化可以从堆积饱和规律出发进行解释。

Apart from the benefits to a terminal generally associated with automating container transport, stacking and retrieval, Gottwald's ASCs offer far improved stacking density and faster working speeds. One-over-five stacking solutions, coupled with variable stack widths, rapid storage and retrieval, ensure high volumes and fast speeds in the container stackyard while maximising space usage.

高华的自动化堆积起重机不但改善了码头的自动化集装箱运输、堆积及检索效率，还提高了堆积密度，加快了工作进程。1-5种堆积方案，可变的堆积宽度，快速的存储及检索保证了集装箱堆场的高容量及高速度，同时实现了空间的最大化使用。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。