分划的

First the math theory of machining simulation is studied, and the set structure of NC machining simulation system whose components, including time, input, output and so on, are defined. Hereby we set up the hierarchy structure, the logical structure, the static model and the dynamic model of simulation system. The construction method of sweep entity of cutter and rotation parts is researched, and their differential geometry invariants are calculated. NC code is unscrambled, and the recursion division arithmetic of time segment is put forward, which is the driven data of the movement or rotation parts. The CLDATA should be interference-free. To examine if there is interference between cutter flank and the work piece, an arithmetic that discussed the existence of intersecting curve between them is put forward. To examine if there is interference between two turrets, an arithmetic that discussed the existence of intersection set between two polygons is put forward.

首先研究加工过程仿真的数学基础，然后定义数控加工仿真系统的集合结构及时间集、输入集、输出集等概念，建立加工仿真的层次结构和逻辑结构，阐述双刀车削仿真系统的静态模型和动态模型建立方法，分析刀具扫描体和旋转部件扫描体的建立方法及其微分几何性质；研究NC代码解读技术和双刀加工时间段递归子分划技术，为驱动各仿真单元作数据准备；通过讨论后刀面和工件表面交线的存在性判断刀具后刀面与工件间是否干涉，通过求多边形的交集判断刀架与刀架是否干涉。

Differing from the general BEM that is attributed from the general boundary integral equation, The natural boundary element method attributed from the natural BIE has not only the advantage of the dimensionality, but is confirmed and gain the only NBIE from the original problem.

无网格方法仅仅需要节点信息，克服了有限元等传统数值方法对网格有较强依赖性的缺点，摆脱了网格的束缚，避免了大量的网格分划、复杂的网格生成及重新划分的工作，减少了因网格畸变而引起的困难，而且收敛快、精度高、易于实现和进行后处理工作。

A new SVM is presented in this paper to solve the approximately linear separable problem of pattern recognition:First,we transform the two convex hulls which are made up of the approximately separable training set to make them separable;Second,we can figure out a separating hyperplane by halving the nearest points method or maximal margin method;Then,we get the approximately linear SVM by solving the dual problem of maximal margin method.

对模式分类中的近似线性可分问题提出了一种新的近似线性支持向量机：先对近似线性分类中的训练集所形成的两类凸壳进行了相似变形，使变形后的凸壳线性可分，再用平分最近点和最大间隔法求出理想的分划超平面，然后再通过求解最大间隔法的对偶问题得到基于相似压缩的近似线性SVM。

In order to get the largest possible field of view, low magnification eyepiece multi-use wide-angle eyepiece, depending on the field in general is greater than 3 °, FPA Office for aiming with the reticle with its optical axis to remain parallel with the primary mirror optical axis.

通常为口径小于10厘米的折射望远镜。为了得到尽量大的视场，目镜多选用低倍率的广角目镜，视场一般大于3°，焦平面处装有供瞄准用的分划板，它的光轴要与主镜光轴保持平行。

The blue-tinted swing-in sunscreen was found to be effective in high brightness situationsalthough the orange graticule was not perfect in some conditions.

虽然橙色的分划在某些条件下不是很完美，但是在高亮度的环境中，发现往内摇摆的带蓝色的遮阳板没有效果。

The blue-tinted swing-in sun screen was found to be effective in high brightness situations although the orange graticule was not perfect in some conditions.

虽然橙色的分划在某些条件下不是很完美，但是在高亮度的环境中，发现往内摇摆的带蓝色的遮阳板没有效果。

The ruling Christian Democrats, who hope to gain votes in next year's election partly by demonising the ex-communist Left Party, is demanding that East German history become a "core subject" in schools.

身为执政党的基民党，为了赢得来年大选的选票而将原社会主义性质的左翼党妖魔化，他们要求将在学校的教程中将东德历史的部分划为核心内容。

And the key technology is providing a proper simulated target. Play the LCD panel on the focal plane of the collimator,to display the real-time figure formed by the simulation software.With the light shining on the LCD panel,the collimator forms a simulated target with a infinite distance.

本课题研究主要内容是：提出了用计算机控制的数字仿真目标设计思想，以液晶光阀替代传统成像平行光管的分划板，并实时显示计算机生成的各种图形；在外光源的照射下，平行光管将液晶光阀显示的图形成像于无穷远，提供给被测光电跟踪测量设备。

Since the 1990 Leica's first digital electronic level come, Leica and Zeiss have succeeded in the market of digital electronic level to achieve a level of precision ruler awarded, gauge partition, and sight reading read, data storage and processing, automated data collection, thereby reducing the level of measurement of labor intensity and improve the quality of the measurement and results.

自 19 9 0年徕卡公司第一台数字电子水准仪问世，徕卡公司和蔡司公司相继成功地将数字电子水准仪推向市场，实现了水准标尺的精密照准，标尺分划读数和视距的读取、数据储存和处理等数据采集的自动化，从而减轻了水准测量的劳动强度，提高了测量和成果质量。

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。