二面的

Furthermore,we present the method for designing quadratic Bezier developable surface:give four corner points of developable surface and two free designing parameters,the other two control vertexes are on the line connecting the linear interpolation point between the first two control vertexes and the linear interpolation point between the last two control vertexes,and they are the linear interpolation points between these two linear interpolation points respectively,namely,these four linear interpolation points are colinear.

提出了二次Bézier可展曲面的设计方法：给定可展曲面的4个角点a0、b0、a2、b2和两个自由设计参数？姿、？滋，则待求的2个控制顶点a1、b1是在前2个控制顶点a0、b0的线性插值点a*与后2个控制顶点a2、b2的线性插值点b*的连线上，并且也是a*、b*这2个线性插值点的线性插值，即这4点a*、a1、b1、b*共线。

In this thesis, we design a subdivision scheme to generate conics and quadrics.

本文设计出了生成除抛物线和抛物面外的二次曲线曲面的Subdivision格式。

Coordinate Geometry (15%). Questions in this content are based on graphing and the relations between equations and graphs, including points, lines, polynomials, circles, and other curves; graphing inequalities; slope; parallel and perpendicular lines; distance; midpoints; and conics.

坐标几何（ 15 ％）。这方面的考试内容是基于方程和图表之间的关系，包括点，线，多项式，圆形和其它的曲线图；不相等图形；斜率；平行和垂直线；距离；中点；以及二次曲线。

Every connected, compact Lie groups G contains a maximal torus T. This maximal torus is unique up to conjugation, and every element of G is conjugate to the element of the maximal torus.

每个连通紧李群具有极大环面子群，任二极大环面子群彼此共轭，且连通紧李群中每个元素共轭于极大环面的一个元素。

With the aid of these talents, the cultural connation of traditional Chinese medicines could be comprehended by the foreigners and finally the traditional Chinese medicines could be accepted by them.

这主要有三方面的原因：一是因为文化的差异，二是因为我国的中药产品不符合国外标准，三是因为我国许多中药企业的经营思路不对，尚未与国际接轨。

In order to improve display velocity, transform the seismic data to a 3-D two-valued image, trace the 3-D connected zone with ordered cross algorithm, thin the zone to get the coordinate of the reflection surface.

为加快显示速度，将一个三维地震数据体转换为三维二值图像，用有序扩展算法追踪同相面所在的三维连通域，细化后得到反射面的坐标数据。

Compared with Fe in homogenous solutions, surface-bound Fe in ZnO-Fe systems was more effective to the dechlorination of TCE.

与均质溶液中的Fe相比，束缚在氧化锌表面的Fe对二氯乙烯有更强的还原脱氯作用。

But whenever Mr. James Dillingham Young came home and reached his flat above he was called 'Jim; and greatly hugged by Mrs. James Dillingham Young, already introduced to you as Della, which is all very good.

但每当简姆斯·笛林汉·杨先生回家，走到他自己二楼上面的房子时，他听到简姆斯·笛林汉·杨太太亲切地叫他"吉莫"，并且被她热烈地拥抱，——这是再好不过的了。

For every ULA, the wide-band signals are sampled in spatial and temporal, then 2-D discrete Fourier transform is carried out. A projection operation on 2-D representation of wide-band signals is applied in the spatial-temporal frequency domain. The direction cosine relative to the ULA axes is estimated by MUSIC algorithm.

该方法采用3个共面的均匀线阵，每一均匀线阵对宽带信号空间采样，然后进行空时二维DFT变换，在空时频率域对宽带信号进行投影变换，用MUSIC算法实现宽带来波信号方向余弦的估计。

In addition to the FDI discussion, it is necessary to analyze MNEs another action, namely foreign corporate divestment, which is closely corresponding to foreign direct investment, it also affects the host country market structure.

至于外商直接投资对东道国产业市场结构的作用所涉及的内容是多方面的，主要在四个领域产生显著影响：一是规模经济效应；二是生产和市场集中度效应；三是市场进入壁垒效应；四是市场竞争格局转换效应。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷