内外

Cross section is a set of polygons and for this reason some relative algorithms for polygon are studied firstly. New algorithms for orientation and inclusion test for simple polygon are proposed. And Ghosh's convex hull algorithms for simple polygon and convex polygons, Subramanian's triangulation algorithm for arbitrary planar domain and O'Rourke's intersection algorithm for convex polygons are modified to make them more robust.

断层轮廓为简单多边形，首先对多边形的一些相关算法进行了研究，提出了一种判断简单多边形方向及点在多边形内外的新方法，改进了Subramanian的平面多连通域的三角划分方法、Ghosh的多边形的凸包及多个多边形的凸包算法和O'Rourke的凸多边形的求交算法。

To fulfill the need of the application of RP technique in medical domain, reverse CAD modeling from medical cross sections is systematically studied in this dissertation. Firstly, Some algorithms related to the research of this dissertation are studied. New algorithms for orientation and inclusion test for simple polygon, an error constrained automatic faring algorithm for B-spline curve and a theorem regarding the termination criterion for subdivision of triangular Bézier patch are proposed. Then based on similarity between contours of adjacent sections, a methodology for surface reconstruction from cross sections is presented. Finally, a virtual measuring method is proposed.

本文针对RP技术在医学领域应用的需要，系统研究了基于医学断层轮廓数据的反求CAD建模理论和方法：(1)在基础算法研究部分，提出了简单多边形方向及点在多边形内外判断的新方法、三角Bézier曲面片离散的误差控制定理和一种带误差约束的B样条曲线的自动光顺方法；(2)提出了一种基于相邻层轮廓相似性的医学断层轮廓数据曲面重构方法；(3)提出了一种称为"虚拟测量"的曲面模型处理方法。

It is adapted with the single main body of city management and the simplex environment.

我国的城市管理正处于内外环境的变化的转型期，这对我国城市管理提出了挑战。

Using the perturbation method and Stroh's formula, a nonideal crack, which is mathematically sharp and the opposing crack faces still have a gap in which a stiffless dielectric fills, the two-field problem is reduced to a standard Riemann-Hilbert problem. The internal electric field distribution is obtained by solving a singular integral equation, and then the full field both inside and outside the crack is obtained and the electro-mechanical intensity factors to the first order of accuracy are given.

采用摄动方法对裂尖理想尖锐而裂纹面又具有一定张开的非理想裂纹进行分析，裂隙内含有无刚度的各向同性电介质，利用Stroh公式，将二域问题化为标准的Riemann-Hilbert问题，裂隙内电场分布通过解一个奇异积分方程获得，从而得到裂纹内外的力电全场分布，进而给出一阶精度下的力电强度因子的表达式。

Sixthly, the paper studies the way that the domestic and foreign trade affects the demands of GuangXi.

六是探讨了内外贸易如何影响广西需求。

Anchors (carbon steel and stainless steel): drop in anchor, cut anchor, wedge anchor, sleeve anchor, hex nut sleeve anchor, sleeve anchor with eye, sleeve anchor with hook.

膨胀螺丝类：内外迫壁虎、车修壁虎、锥杆套管壁虎、外六角锥螺母套管壁虎、羊眼套管壁虎、钩型套管壁虎。

Factory main production: ring, wave washer, saddle-type flexible gasket, C-type snap ring, dish washer, single-ear binaural, round nut with washer stop, both within and outside the teeth, the bearings folder, plum gaskets, flexible cylindrical pin , card ring, DIN standard ring and all kinds of custom pieces of red stretch.

本厂主产：挡圈、波型垫圈、鞍型弹性垫圈、C型卡环、碟形垫圈、单耳双耳、圆螺母用止动垫圈、内外齿、轴承夹、梅花垫圈、弹性圆柱销、卡圈、DIN标准挡圈及各类冲拉伸件定制。

Human skin is soft, moistening and smooth when people are young, however, with influence of internal and external factors including increase of age, change of season, excessive solarization, not enough sleep, irregular food intaking, working pressure and environmental pollution, etc, some people will have skin problems such as patch, wrinkle, pox, sensitivity, blood streak, etc. which is often accompanied by phenomena of epidermis damage, function decline, worse skin quality such as redness, swelling, pain, itch, dryness, desquamation, etc.

人的皮肤在年糼的时候都是柔润光滑的，但随着年龄的增长，季节变换，过度日晒，睡眠不足，饮食不调，工作压力及环境污染等内外因素的影响，有的就会出现斑、皱、痘、敏、红血丝等皮肤问题，并常伴随红、肿、痛、痒、干、脱屑等表皮受损，机能衰退、肤质变差等现象。

Because the horizontal lathe craft scope is quite widespread, may in the turning the outer annulus cylinder, the circular conical surface, the ring channel, the solid of revolution formation surface, the turning end surface and each kind of commonly used metric system, the British system, the mold notational system, the pitch system thread, but also may carry on drills the center bore, the drill hole, the broaching, reams, work and so on tapping, wrap thread and knurling.

因为卧式车床的工艺范围相当广泛，可以车削内外圆柱面、圆锥面、环形槽、回转体成型面，车削端面和各种常用的公制、英制、模数制、径节制螺纹，还可以进行钻中心孔、钻孔、扩孔、铰孔、攻螺纹、套螺纹和滚花等工作。

Shanghai green Limited Zhangyuliang analysis, and for a long time, It was judged only concern building space size, the layout functional and aesthetic results in the shape of, and internal and external decoration materials grades endures Hin factors, while ignoring the content of the quality of indoor space, such as the thermal environment, sound pollution and air quality, which led to the use of late construction, maintenance energy high.

上海绿地有限公司总裁张玉良分析，长期以来，人们评判建筑只关注空间的大小、功能的布局、造型的美学效果，以及内外装修材料的档次等外显因素，而忽略室内空间的内涵品质，如热环境、声环境和空气品质等，这导致建筑后期使用、维护耗能很大。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。