后面的

Mathematical model for hyperboloid grinding of twist drill and relationships between drill design and grinding parameters are introduced.

介绍了以回转双曲面作为麻花钻后刀面的数学模型，设计参数与刃磨参数的关系。

After impoundment of reservoir,there would be a large amount of hydrous slope s,with stability being influenced of the change of the water level.

水库蓄水后将形成大量的涉水边坡，库水水位的变化将对其稳定性产生影响，目前关于这类边坡的稳定性分析，一般都是首先确定坡体内浸润面的位置，然后再进行稳定性分析。

Sound in regards to this kind of business one after another in the Department.

声音在这方面的业务后，一种在另一处。

Content of the course consists of:(1)Basic Theories of Polynomials ;(2)Linear Algebra: topics on basic matrix theory, determinant, system of linear equations, vector space, linear transformation, eigenvalue problems, inner product and Euclidean space , and quadratic form etc.;(3) Analytic Geometry: topics on algebraic operations of vectors, coordinates, lines and planes, curves and curved surfaces, etc.

学习本课程后，学生应学会用线性空间与线性变换的观点处理包括线性代数方程组在内的有关理论与实际问题；学会熟练地运用矩阵工具；本课程还学习基本的多项式知识和空间解析几何的基本知识。课程内容包括几个主要部分：（1）多项式代数；（2）线性代数：矩阵，行列式，线性代数方程组，向量空间与线性变换理论，特征值问题，欧氏空间理论，二次型等；（3）解析几何：几何空间向量代数，通过建立坐标系以及借助向量方法研究空间平面与直线及点﹑线﹑面的相互关系，借助曲面方程研究空间曲面，尤其是柱面，锥面，旋转面和二次曲面以及曲面的交线等。

So we need consider the effects of the earth curvature. In global integration, the requirement of the data coverage and the computation are comparative high. In this thesis, a moving coordinate system is used to overcome the effects of the earth curvature. And a differential calculation concept is proposed that assumes the difference of geoid calculated between the central point and its marginal point is constant when the integration area is far away from the central point.

论文中提出了利用柱体积分时采用移动坐标系来顾及地球弯曲的影响，并利用差分的概念，设想离计算区域到一定距离后，流动点对计算区域内的中心点和边缘点的影响之差为一常数，并用试验的方法，统计分析了它们对大地水准面的有效积分拓展范围。

How? If you stand under a doorway and the door jamb falls forward or backward you will be crushed by the ceiling above..

如果你站在门口下，门框侧墙不论是向前或向后倒塌，你将会被在上面的天花板压碎…如果门框侧墙倒向两边，你将会在门口被切成一半，不管何种方式，就是死路一条

Go back to the days after Katrina and see his long face for evidence of this.

回去后几天飓风和看到他的脸长，为这方面的证据。

This paper presents findings from focus group interviews conducted in Bangkok in the mid-1990s to begin to fill this lacuna.

这篇论文打算填补这方面的空白。本文介绍了在曼谷进行小组访谈后的调查结果，该项调查是于二十世纪九十年代中期开始的。

In the teaching experiment of task-based teaching model in the senior English writing, experimental classes and contrasting classes have pre-test and post test in listening, written examination and compositions. It is obvious that the students of experimental classes have improved their English in listening, written examination, and compositions after the experiment. The students who are in experimental class have active thinking and they can emit their opinions with courage and participate the class teaching with highly enthusiasm. Also they have strong consciousness of cooperation.

长春市第十七中学任务型教学模式高中英语写作的实验，首先进行了实验前测，目的是为了比较理科实验7班和对照班8班在实验前的英语水平，实验前测分为听力、笔试和写作三个部分，得出的结果是实验前两个班级在这三方面的差异很小，进行实验后，又进行了听力、笔试和写作的测试，结果表明，高中英语写作任务型教学实验是有效的，而且从平时课堂观察来看，实验班学生思维活跃，勇于发表自己的见解，课堂参与的积极性高，合作意识较强，口语表达能力强。

This information can be saved and later loaded for a review.

这方面的资料可以保存和加载后进行检讨。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。