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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。

To check tort behavior, easy interesting website is made have " plan of attestation of intellectual property obligee ", remind the lawful sex that sells the home the goods that sells to net arsis to be in charge of, intellectual property obligee also can pass the regulation of attestation plan to be informed against to easy interest net after discovering the right is encroached, because this two the accused all already arrived to notice obligation reasonably, do not form the tort of pair of two accuser.

为制止侵权行为，易趣网站制定有《知识产权权利人认证方案》，提醒卖家对网上拍卖的物品的合法性负责，知识产权权利人在发现权利受到侵犯后也可通过认证方案的规则向易趣网举报，因此两被告已尽到了合理的注重义务，不构成对两原告的侵权。【以下内容为IT者网站提供英文翻译，未经授权请勿转载

This paper presents a method for getting initial basic feasible solution of linear programming problem with an artificial variable,comparing with a traditional two-stage way ,it has low computation amount and needs less memory cells for computing,and improve two-stage way simple method.

提出了一种通过对线性规划问题增广矩阵的初等行变换后，引进一个人工变量即可求得初始基可行解的方法，该方法与传统的两阶段法相比，具有计算量小且占有存储空间少的特点，从而简化了二阶段单纯形法。

This paper presents a method for seeking initial basic feasible solution of linear programming problem without using artificial variable,comparing with traditional two-stage way ,it has low computation amount and needs less memory cells for computing,so it is an improved two-stage way of the first period question.

提出了一种在不引入人工变量的情况下，寻求线性规划初始基可行解的方法，与传统的两阶段法相比，具有计算量小且占有存储空间少的特点，对两阶段法第一阶段问题作了改进。

A number of make a list one week's holidy the price of dream of be at home and abroad try wastern food hot and spicy food win the match since then last fantstic experience so far expect to do get an education ask sb for sth as good as in one's life have/has been to in rural areas two point two because of try doing sth in a universe today's newspaper translate...into forget doing sth all over the world up to hear about/o f take part in at last/in the end in the seat the palace museum pay for look for write down each c\other guess what?

一定数量的牌子名单一个week's holidy 梦想的价格是国内外尝试wastern 食物热并且比赛为时fantstic 经验到目前为止从那以后准备做得到教育请求sb sth 的辣食物胜利象在one's 生活中have/has 是对在乡区二点二中由于尝试做sth 在宇宙today's 报纸翻译。。。成忘记一样做sth 由决定全世界听见about/o f 参与在last/in 末端在宫殿博物馆薪水为寻找写下各个c\other 猜测的位子什么？

This problem actually very simple, asker and the one choose a site for the capital that jeers accordingly is some of dish bird, content and outside catenary, two important, two are the thing that SEOER should do, what Seo does not just is a rank.

这个问题其实很简单，发问者和跟着起哄的一定都是些菜鸟，内容和外链，两个都重要，两个都是SEOER要做的事，seo不仅仅做的是排名。

Clean cloth tile dish inside, on cloth aspersion becomes wet cloth, make cake two sides is touched sail upstream, put cake on sesame seed again, make cake two sides touchs sesame seed.

把干净布平铺盘内，在布上洒水成湿布，使饼两面都沾上水，再把饼放在芝麻上，使饼两面都沾上芝麻。

The head of the state government says intelligence reports had anticipated an act of retaliation following the arrests of two leaders of the Assamese separatist group two weeks ago in Bangladesh.

该州州长说情报以及经预测到了报复行动，因为阿萨姆分裂组织的两位领导人两星期以前在孟加拉国被逮捕。

In nearer ten years, assart grassland is very serious in the northern grassland, and show "two raise and three decrease","two raise" are farmland raise and garden raise,"three decrease" are grass decrease, forest area decrease and pasture area decrease.

近十余年来，我国北方草原地区开垦草地现象十公严重，出现了"两增三减"的现象，"两增"是耕地面积大幅度增加，园地面积大幅度增加；"三减"是牧、草地面积减少，林地面积减少。

In the geometry of matrices, the points of the associated space are a certain kind of matrices, there is an arithmetic distance of two points in this space, and there is a transformation group acting on this space. Two distinct points is said to be adjacent if their arithmetic distance is one or minimal.

在矩阵几何中，空间中的点是某一类矩阵，两点间存在一种算术距离，还有一个变换群作用在这个空间上，两个不同的点间的算术距离为1或最小时称这两点是粘切的。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！