在结构上

On the basis of the structure,the shapes of abrasive grain and sanding characte-ristics of the sand belt ,this paper brings out the principle of prolonging sandbelt working life by"bidirctional sanding"and the possibility of practising theprinciple.

在理论上对砂带的结构、磨粒形状、磨削特点等方面进行分析，从使用方法这一角度，提出了"砂带双向磨削"这一新概念，阐明了该方法延长砂带使用寿命的原理以及在实际生产中应用的可能性。

Histological and cellular research on rachis of healthy and inoculated spikes of the mutants at the different stages showed that, structure and developed tendency of cortical sclerenchyma tissue and green tissue and fibrovascular tissue in the rachis were alike between the mutants and their donors at anthesis stage, which also showed no apparent difference in the inoculated spikes'rachis between the mutants and their donors, major difference was that the mutants had less hyphae number than their donors.

对抗赤霉突变体的健康穗及接种穗的穗轴细胞组织学研究结果显示，抗性突变体与其感病亲本的花期健康穗轴在皮层厚壁组织、绿色组织及维管组织结构上基本一致，不同发育时间的变化趋势也一致；接种处理后，抗性突变体与其感病亲本的穗轴组织在各方面的变化趋势相一致，变化量也无明显差异。

The similarities of structure and loading conditions of a cylindrical shell with a hole under inside pressure and that of its plate model(a plate with a hole under tension) are analyzed to improve the precision of its fatigue life prediction by modeling.

研究受内压开孔圆柱壳与其受拉伸开孔平板模型在结构和受载条件上的相似性。有限元分析表明，开孔圆柱壳与其相应的平板模型在开孔附近的等效应力分布非常相似。

Finally, we have observed the behavior of nickel silicide gate based on different gate structures.

最后，我们去观察在镍矽化物形成在不同闸极结构上的特性。

The proposed scheme is in the great tradition of English football stadia that have historically formed an integral part of their communities and social urban fabric.

拟议的计划是，在历史上形成了自己的社区和社会的城市结构的组成部分，在英国足球场馆的伟大传统。

Especially,the subbranch of enterobacteriaceace made again four small branches as genus taxon.This tree also shows that bacilliform bacterium is distinct from each other in the NJ and MP trees.After all species on the tree are merged,the topological configuration of the unrooted tree of 16S gene is closed to that of the host range unrooted tree.However,the position of bacillus is greatly changed on both the unrooted trees.

将16S DNA的NJ树隐去所有的种，以属为单位所得到的以分枝形式的无根树在拓扑结构上与菌群分布含量所构建的无根树相近，但芽孢杆菌在两种无根树的位置中有较大的差异。

At this stage of toothpaste products on the market price structure can be divided into three categories

在此牙膏产品在市场上的价格结构的阶段可以分为三类：一类

For the long cylinder body structure and un — convenient to put oil , it is easy to operate but more complicate than the standard cylinder in after sales maintaining.

本缸速度快、安装方便简单，因缸醴结构较长及加油不大方便，在操作使用方便比较便捷，售后维修方面较标准型稍复杂等特点；在纵向上长度较其它缸型稍长，只适用于封纵向长度无较大限制埸合。

In the leaves of Liriodendroideae, some of the abaxial epidermal cells are papillose and the vascular tissue of the main vein appears to be separated. However, papillose were not found and there are uniseriate, multicellular or unicellular hairs distributed on the epidermis, and the vascular tissue of the main vein appears to be continuous in the leaves of Magnolioideae. Furthermore, in the Magnolioideae, the structure of the leaves of plants in Manglietia are different from that of Magnolia.

结果表明：鹅掌楸亚科和木兰亚科在叶的结构上的主要区别是鹅掌楸亚科两种植物叶的部分下表皮细胞呈乳突状，且整个细胞外壁只形成一个乳突，而在木兰亚科的植物中有单列多细胞或单细胞的表皮毛，未发现乳突；鹅掌楸亚科植物的叶主脉维管组织环分隔呈束状，且其外包被的纤维也排列成束状，而木兰亚科的80种1亚种植物中，叶主脉维管组织连成轮状，其外面也由一圈连续的纤维环所包围。

To obtain a complete picture about shock formation in non-viscous flow, in the succeeding chapter we investigate the isothermal shocks in adiabatic flows. We find that in this case the shock solution still exists, but the structure and the properties of the solution are greatly different from above even qualitatively. In some region of the parameter space there only exists unstable shock solution and in some region of the parameter space there may exist two stable shock solutions.

为得到完整的无粘流体中激波形成的图象，在接下来的第四章，我们研究绝热流体中等温作为激波条件时的情况，发现此时激波解仍存在，但解的结构和性质甚至在定性上都与前两章有了显著的不同：某些参数空间只存在非稳定的激波解，某些参数空间则会同时出现两个稳定的激波解。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了