立方的

The Ehrlich-Schwoebel barriers of an adatom Cu diffusing down an island of fcc Cu are calculated by molecular dynamical simulation.The two-dimensional(2D) and three-dimensional(3D) ES barriers are calculated and compared with the results of Al.

利用分子动力学中的静态结构弛豫方法对Cu原子在面心立方铜的台阶表面扩散过程中的Ehrlich-Schwoebel势垒进行了模拟计算，研究了二维和三维ES势垒的差别，并将Cu与面心立方Al的结果进行了比较。

He cyclic oxidation resistance of TiAl alloy is improved by depositing Cr\|modified aluminide or alluminide coatings.

iAl合金经过Cr改性铝化处理后，表面形成了具有立方Ll2结构的Al67Ti26Cr7层，立方Ll2结构的Al67Ti26Cr7不仅具有较高的铝含量，而且具有优良的韧性，因而使得处理后的TiAl合金具有良好的抗高温循环氧化性能。

These massive icebergs were calved from Greenland's Jakobshavn Glacier, a massive frozen river that sends 11 cubic miles (45 cubic kilometers) of ice into the ocean each year, more than any other glacier in the Northern Hemisphere.

这些巨大的冰山是从格陵兰岛的亚克普斯豪恩冰川分离出来的。每年，由一条宽阔的冻结河流可以运送11立方英里（45立方公里）的冰到大洋之中，而Jakobshavn冰川的量超过了北半球的任何一条冰川。

Therefore, the previous data of heats of formation of polynitrocubanes estimated from groupadditivity method are corrected.3. Calculations indicate that, for polynitrocubanes, there are parallel relationships between their experimental kinetic acidities pKa, the average s characters in the exocyclic carbon orbital used for the C-H bonds within each molecule, and the average C-H stretching frequencies within each molecule.

计算结果表明，多硝基立方烷的实验动力学酸性pK_a、分子内用于形成C-H键的环外碳轨道平均s成分和分子内的平均C-H伸缩频率之间，存在平行的递变关系，这对基于s_a或v_a的数值预估动力学酸性pK_a、进而指导多硝基立方烷和其它相关化合物的合成有助。

Therefore, the previous data of heats of formation of polynitrocubanes estimated from groupadditivity method are corrected.3. Calculations indicate that, for polynitrocubanes, there are parallel relationships between their experimental kinetic acidities pKa, the average s characters in the exocyclic carbon orbital used for the C-H bonds within each molecule, and the average C-H stretching frequencies within each molecule.

计算结果表明，多硝基立方烷的实验动力学酸性pK_a、分子内用于形成C-H键的环外碳轨道平均s成分和分子内的平均C-H伸缩频率(来源：AB0eC论文网www.abclunwen.com)之间，存在平行的递变关系，这对基于s_a或v_a的数值预估动力学酸性pK_a、进而指导多硝基立方烷和其它相关化合物的合成有助。

The recovery of the pseudocubic angle of LSMO resulting from the relaxation of the shear strain introduced by the growth of rhombohedral LSMO on cubic LSAT was suggested to be the origin of the superlattice structure.

不对称的(103)倒易空间图强有力地证明了这面内调制结构源于因菱形的LSMO和立方衬底LSAT之间的角度失配引起的一种剪切应力的弛豫而导致LSMO薄膜中赝立方角的恢复。

A series of copper halides in one, two, or three dimensions have been successfully synthesized such as rhomboid dimers of stoichiometry [Cu2X2L2]n, the tetranuclear species on cubane or stepped cubane tetramers of stoichiometry [Cu4X4L4]n and hexagonal[Cu6X6] grid chains.2 The main strategy in crystal engineering is a secondary building block approach.3 For a given building block, there are two routes to construct frameworks.

在一维、二维或三维的一系列卤化铜已经成功地得到了合成，比如化学计量法[Cu2X2L2]n的长菱形二聚物、化学计量法[Cu4X4L4]n和六边形[Cu6X6]网格链的在立方烷上的四核类或阶梯式立方烷四聚物。[2] 在晶体工程上的主要策略是一种次级构件途径。[3] 对于一给定的构件来说，有两条构件骨架的路线。

Presents the microstructure evolution in aluminum a nd copper after deformation by cold rolling in the strain range of 10 to 50%red uction using TEM and points out three types of dislocation structures are typica l and two of them are common for both materials and these two common types are f ound in non-cube grains and can be distinguished by crystallographic orientatio n of dislocation boundaries in the grains and the third type of structure is obs erved in cube grains, and concludes that grain orientation is important in deter mining the structure type but some other metallurgical parameters also have a ro le to play.

采用TEM对冷轧多晶铜与多晶铝的形变显微组织演变进行了对比研究。结果发现：多晶铜及多晶铝形变显微组织中均含有三类典型的位错结构类型，其中的两种结构特征在两种材料中是相似的，这两种类型结构存在于非立方取向晶粒，可通过晶粒中位错边界的晶体学取向加以区别，另一类型结构存在于立方取向晶粒；晶粒的晶体学取向决定了其形变显微组织类型，但其它冶金学因素对显微组织也有影响。

The elasticity theory of dislocation of cubic quasi crystal is developed, and analytical expressions of displacement and stress fields for screw dislocation in cubic quasi crystal are obtained by using governing equations of anti plane elasticity problem of the quasi crystal.

本文发展了立方准晶的位错弹性理论，通过立方准晶的反平面弹性问题的控制方程，得到了其含有螺型位错时的位移场与应力场的解析表达式。

Based on the report issued by China National Petroleum Corporation and Bureau of Geophysical Propecting dated August 2007 in relation to the estimate resource potential in Tartagal block, by reviewing geologic setting and characteristics in Argentina; geologic setting of basin where the Tartagal block is located; geologic setting and evaluation of Tartagal block; the results of previous drillings, the estimated reserve of oil resource is approximately 0.81 billion tons, dissolved gas resource reserve is approximately 277.2 BCF and gas reserve is approximately 317.5 BCF.

根据CNPC与BGP所发出日期为二零零七年八月之关於Tartagal区块估计潜在资源报告所示，经审核阿根廷的地理背景及特徵； Tartagal区块所在盆地的地理背景； Tartagal区块的地理背景及评估；以往钻井的产量，估计石油储量约810，000，000吨，已探明的天然气储量约277.2亿立方英尺及天然气储备约317.5亿立方英尺。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。