居中的

Pictures and objects that are center and left align will become left aligned.

居中和左对齐的图片和对象将转换为左对齐。

In addition, some modifications on several computational methods are also presented. Using LMTO method the electronic structure of several systems are studied, and some results are obtained. They are: The ideal Nb (100) surface has three surface states, the multi-layer relaxed surface has two surface states. The surface energy of the ideal surface is higher than that of the relaxed surface, that means that the multi-layer relaxed surface is more stable than the former one, which supports the LEED results. The mono-layer relaxed Ag (111) surface is the most stable one among several" stable surface models"presented by several researchers. The surface energy of Ag (111) surface is higher than that of surface Ag (001), which supports some experimental results such as different reaction rate at different surface orientations for the same material. The surafce states of Si (111) surface not only locate near the Fermi level, but also in the valence band, which agrees well with Cohen's conclusion. Si (111)-H is an effective model for analysing the surface states and H adsorbed on the back surface is a good method for improving the convincingness of the results obtained on thinner slab models. The surface stability depends on three different kinds of MoSi〓(001) surfaces, the surface with mono-layer Si is the most stable one, and the surface with Mo at the first layer is the most unstable one among them. These are consistant with the Kemoda's experimental results. The valence bands of clean or K adsorbed CdTe (111) surface agrees well with the synchrotron radiation studies. The surface of CdTe (111) consists of four kinds of surface models which show different surface electronic structures and different surface structure stabilities. The conclusion agrees well with Wu's experimental work. The different absorbed alkali metals on the CdTe (111) surface give different adsorption characteristics which have relations not only with the valence electrons, but also with the core ones of the alkali metals. The electonic structures of Si-C alloys are different from that of Si-Ge alloys, and the energy band gaps of Si-C alloys do not increase linearly with Carbon concentration, our conclusion supports Alexander's results, but conflicts with Soref's one.

现分述如下： LMTO方法及其应用方面：1）通过对Nb（100）表面电子态分析发现清洁理想表面有三个表面态，多层弛豫表面有两个表面态；表面能大小说明多层弛豫表面更稳定，支持了LEED结果。2）通过对采用不同方法获得的几种不同Ag（111）表面稳定结构的表面能计算分析，给出了单层弛豫表面为Ag（111）表面的最稳定结构；从Ag（111）单层弛豫表面和Ag（001）表面的表面能比较，发现了Ag（001）表面表面能要比Ag（111）小的，表明了同种物质不同表面取向将表现出不同物理、化学性质，这是与实验中得出的结论是吻合的，3）通过对Si（111）表面态分析，不仅发现了Si（111）表面不仅具有居于费米能级附近的悬挂键所对应的表面态，而且还有很多表面态位于价带能量范围内，与Cohen等结果一致，H饱和slab模型背表面相当于增加了slab层的厚度，是一有效的变相增加slab层厚的方法，弛豫表面较清洁理想表面价带谱们低能端的少许移动，预示着总能降低，说明弛豫表面较清洁理想表面稳定。4）MoSi〓具有三种表面，从费米能级上态密度值大小得到单层Si表面最稳定，Mo原子为表层原子的表面最不稳定，双层Si原子表面居中的结论，这与Kemoda等人实验结果是一致的。5）通过对CdTe（111）表面表面电子态、表面结构稳定性及表面H、碱金属吸附的电子结构系列研究，不仅得出了CdTe（111）清洁及碱金属K吸附价带谱与同步辐射光电子谱相吻合的结果，而且发现了CdTe（111）表面具有四类不同原子近邻特征，表现出四类不同的表面结构及电子结构特征：不同表面态分布、不同的表面结构稳定性（表层原子与次层原子成三键有一悬挂键的表面要比表层原子与次层原子成一键有三悬挂键稳定（与Wu等人实验结果一致））、不同的H吸附特性。

In order to optimize tolerance values for an assembly system, a model for geometric dimension tolerance optimization was established and an algorithm for optimal tolerance design was proposed. The algorithm is divided into two stages: at the first stage, design centering problem is solved and statistical optimization for further lowing the cost is solved at the second stage.

为优化装配系统中公差链的公差值，建立了几何尺寸公差的优化模型，并提出公差的分层优化设计算法：第一层，解决设计公称值居中的优化问题；第二层，解决进一步降低成本的概率性优化问题。

Tab stop set up after the front of the cursor on the formula, click the Tab key, so that the formula, insert the words in a tab, when the formula in place as the central tabulation center Align Center and then the cursor moved between the formula and the left bracket, and then Tab key insert a tab, go to line number on the end.

设置好制表位后，把光标放在公式的前面，按一下 Tab 键，这样就在公式的前面插入了一个制表符，此时公式以居中制表位为中心居中对齐，再把光标移到公式和左括号之间，再按 Tab 键插入一个制表符，编号就跑到行末了。

Udana is the least dense of the pranas ,then comes prana ,samana ,and apana .vyana ,which flows over the whole body ,has a density which is the average of all the others .the different colors of the pranic or bioplasmic clouds are due to the emission of photons when electrons change their energy levels from higher to lower frequencies .

按能量的密度从小到大，依次是UDANA，PRANA ，SAMANA和APANA。在全身密布的是密度居中的VYANA。当电荷改变了他们的能量从高到低的水平的时候，他们的颜色、以及存在的空间，向外扩散的方式也随之改变。

According to the cluster analysis of mortalit y and salt tolerance index,the tested accessions can be classified into f ive groups:sensi-tive,low tolerant ,moderately tolerant ,tolerant and high tolerant.Vitis champnii was high tolerant ;V.rupestris and V.a-murensis×V .labrusca were low tolerant.There were greatly differences of the tolerance am ong the varieties of V.riparia,of which many species were mode...

结果表明，不同种质的耐盐力从0.1%～0.4%不等；野生葡萄中的香槟尼的耐盐性好；沙地葡萄和山美杂种的耐盐性较差；河岸葡萄各品种间的耐盐性差异较大，其中，多数品种的耐盐力居中；河岸葡萄与沙地葡萄、冬葡萄的杂种后代的耐盐性也有不同程度的差异性；我国广泛作为砧木的贝达葡萄的耐盐性居中。

A man shall see, where there is a house full of children, one or two of the eldest respected, and the youngest made wantons;but in the midst some that are as it were forgotten, who many times nevertheless prove the best.

我们会看到在有很多子女的家庭中，一两个最大的的孩子受到大家的尊敬，而最小的又受到宠爱。唯有居中的子女会被疏忽遗忘，但他们却往往成了是最优秀的。

There is the little domestic scenery of the well-known apartment; the chairs, with each its separate individuality; the centre-table, sustaining a work-basket, a volume or two, and an extinguished lamp; the sofa; the book-case; the picture on the wall--all these details, so completely seen, are so spiritualised by the unusual light, that they seem to lose their actual substance, and become things of intellect.

月光最能让小说家和他虚幻的客人结友，而这里正是一派居家气氛：几张座椅随随便便地放着，居中的那张桌上是个针线筐儿，一两本书和一台熄灭的灯；还有沙发，书柜，和挂在墙上的画--这一切的一切，在月光下显得如此超凡脱俗，仿佛已没有了了实体，而成为一种抽象。

There is the little domestic scenery of the well-known apartment;the chairs,with each its separate individuality;the centre-table,sustaining a work-basket,a volume or two,and an extinguished lamp;the sofa;the book-case;the picture on the wall——all these details,so completely seen,are so spiritualised by the unusual light,that they seem to lose their actual substance,and become things of intellect.

月光最能让小说家和他虚幻的客人结友，而这里正是一派居家气氛：几张座椅随随便便地放着，居中的那张桌上是个针线筐儿，一两本书和一台熄灭的灯；还有沙发，书柜，和挂在墙上的画——这一切的一切，在月光下显得如此超凡脱俗，仿佛已没有了实体，而成为一种抽象。

Centered on the important temple of Inanna (the Great Goddess of Love and War), the city has produced beautiful stone sculptures depicting the temple flocks of sheep and goats.

居中的是重要的伊南娜神庙，这个城市产生了美丽的石头雕像，描绘着庙宇里的众多善人与恶人。

Chrysanthemum of 10 thousand birthday is lax to edaphic requirement, with the arenaceous qualitative loam with fecund, good drainage had better.

万寿菊对土壤要求不严，以肥沃。排水良好的砂质壤土为好。

He unstepped the mast and furled the sail and tied it.

他拔下桅杆，把帆卷起，系住。