四边形

An instrument for copying a plane figure to a desired scale, consisting of styluses for tracing and copying mounted on four jointed rods in the form of a parallelogram with extended sides.

缩放仪一种按所需的比例复制平面图片的仪器，由用于描绘和复制的描画针组成，描画针置于四根有活节的杆上，四根杆构成可调整边长的平行四边形

An instrument for copying a plane figure to a desired scale, consisting of styluses for tracing and copying mounted on four jointed rods in the form of a parallelogram with extended sides.

缩放仪一种按所需的比例复制平面图片的仪器，由用于描绘和复制的描画针组成，描画针置于四根有活节的杆上，四根杆构成可调整边长的平行四边形 turning or twisting around。四周转或扭。

In order to remedy this kind of shortage, this paper presents a quick volume rendering method, for the finite element data field of dam seismic response, choices the slicing direction relying on the element surface which normal line has the smallest included angle with the view direction, slices elements to many quadrilaterals, blends the colors of these quadrilaterals by using OpenGL blending technology, and then superimposes all elements one by one.

为了弥补传统体绘制静止画面不能明确判断场值集中部位的不足，提出一种快速体绘制算法，针对大坝地震反应有限元计算数据场，根据每个单元法线与视线夹角最小的表面来选择剖切方向，将单元剖切成多个四边形面后，对单元的绘制顺序进行合理排序，利用OpenGL图形库函数进行颜色融合，再将各个单元依次叠加，从而生成了三维数据场的体绘制图。

Software Description: About Mega Mensuration, This is program for teaching and learning mensuration. It includes perimeter and area of rectangles,squares, parallelograms, triangles and trapeziums.

Mega Mensuration 这是用于几何数学的教学和学习测试的软件，包括周长和面积的矩形，正方形，平行四边形，三角形和梯形。

Can we combine two same acute-angled triangles into a parallelogram .

师：两个完全一样的锐角三角形可以拼成平行四边形吗？

seepage ; drainage hole ; air element ; finite element method ; simulation

当以有限元法做渗流场分析时，若考虑排水孔的尺寸效应，以四边形或

The model adopts Drucker-prager ideal elastic-plastic stress-strain model, using contact pair element simulate the interface between the wall and soil, soil body use eight-nodes is parametric quadrilateral element, pile use beam element, and anchor rod use space link element.

模型采用Drucker-Prager理想弹塑性本构模型以及用接触面单元模拟了土与结构的相互作用，土体采用了八节点等参数平面四边形单元，桩采用了梁单元，锚杆采用了杆单元。

Light tones of blue .an academic cap topped by a flat square with a tassel.

顶部有一个带绶带的四边形帽顶的学术性的帽子。

An academic cap topped by a flat square with a tassel.

顶部有一个带绶带的四边形帽顶的学术性的帽子。

The new machine can cut a taper with its top point fixed. The cutting motion of torch is realized by the composite revolving of the two orthogonal axes.

依据数学模型对机构的结构进行优化设计，机构采用平面的平行四边形机构，通过回转轴和连杆的转动合成割枪的切割运动。

The labia have now been sutured together almost completely.The drains and the Foley catheter come out at the top.

此刻阴唇已经几乎完全的缝在一起了，排除多余淤血体液的管子和Foley导管从顶端冒出来。

To get the business done, I suggest we split the difference in price.

为了做成这笔生意，我建议我们在价格上大家各让一半。