折

Firstly, this paper definited pseudometric d for n -foldproduct of σ-algebra A of subsets of a given set X , and definited indicator function ; secondly, gave the concept of differentiable of set function at S° and concept of partial derivative at S° with respect to the ith argument Si through indicator function, and defound the weak efficient solution of and optimality necessary condition; Finally, obtained three weak duality results and strong duality results under generalized convexity conditions.

首先，对已知集X的子集的σ-代数A的n-折积A^n，定义了伪度量d，给出了相应的特征函数〈h，Is〉；其次，通过特征函数给出了集函数在S 可微的定义及集函数在S 关于第i个变量Si的偏导数定义；给出了多目标规划问题的弱有效解概念及的最优性必要条件；最后，分别在目标函数和约束函数的3种较弱凸性条件下，研究n-集函数多目标规划问题的对偶问题，获得了3个弱对偶结果和强对偶结果。

Please puck the chair and put it away.

请把椅子折起来放在一边。

Please pucker the chair and put it away.

请把椅子折起来放在一边。

Please pucker the chsairs and put them together.

请把椅子折起来放在一边。

Please pucker the chair and set it aside.

请把椅子折起来放在一边。

Leave the end hanging loose so you can pull it to tighten the strap.

让带子的未端突出如一个松的折角。

It as a draft. Once you pull it up again from your drafts it is now hardwrapping.

草稿。当你从草稿中取出时，禁用"word wrap"不会去除已有的折行。

Companies with modern equipment, manufacturing equipment, including CNC cutting machines, CNC folding machines, CNC turret punch press and so on.

公司装备拥有现代化的制造设备，包括数控剪板机，数控折板机、数控转塔冲床等。

The company has advanced Multi-CNC CNC punch press, CNC folding, a number of other common devices, at the same time have a CNC milling, general milling machine and other advanced equipment.

公司拥有先进的多工位CNC数控冲床、数控折、其它普通设备若干，同时拥有数控铣、普通铣等先进的机加设备。

The company has modernized production line H beam 5, the annual steel production capacity of 35,000 tons, envelope system was installed more than 600,000 square meters, annual output value of 152 million yuan, with a complete line of enclosure systems production lines with international advanced design software able to conduct various kinds of light steel structure system design work and has CNC plane drilling, straight machine, CNC bending machine, CNC purlin machine, CNC machine platen advanced types of machinery and equipment.

公司拥有H型钢现代化生产线5条，年钢构生产能力3.5万吨，围护系统年安装60万平方米以上，年产值1.52亿元，配备全套的围护系统生产线，拥有国际先进的设计软件，能够进行各种轻钢结构体系的设计工作，并拥有平面数控钻、直条机、数控折弯机、数控檩条机、数控压板机等国内外先进的各类机械设备。

Next time I see you,I shall give you a black eye.

下次我看见你，我会打你一顿。

In this paper,design scheme of classification system of wood surface color is established.

提出了木质板材颜色分类的系统设计方案。