四边形的

Based on geometrical nonlinear finite element theory, a curved quadrilateral isoperimetric element with 8 nodes for initial form analysis of tensile membrane structures is presented.

根据几何非线性有限元理论，提出张力膜结构初始形态分析的8结点曲面四边形等参单元。

Based on the geometrical nonlinear finite element theory, a curved quadrilateral isoperimetric element with 8 nodes for initial form analysis of tensile membrane structures is presented.

本文根据几何非线性有限元理论，提出张力膜结构初始形态分析的8结点曲面四边形等参单元。

This unique long stroke shock mounted parallelogram landing gear is a break through in gyroplane safety.

这种独特的长冲程休克式平行四边形起落架是一个突破gyroplane安全。

Firstly, the surface was dispersed into quadrangular meshes, then, the self-hidden lines were removed from the surface by the algorithm of removing hidden lines.

首先将方程曲面离散成四边形网格，然后采用消隐算法消除曲面的自隐藏线。

According to the principles of infinitesimal calculus ,a new method on how to ratiocinate the arbitrary quadrilaterals area was put forward.

利用微积分原理给出任意四边形面积公式推证的一种新方法。

This construction is often called the parallelogram law of addition of vectors.

这种作图法常被称为矢量相加的平行四边形法则。

Slashing confidently through the hidden parallelogram of forces that were its destiny.

极有自信地划过主宰其命运那隐而不见的平行四边形。

The students can use the formula to calculate Parallelogram area and solve the related problems.

使学生能比较熟练地应用平行四边形面积的计算公式，解答有关实际问题。

In fact, the area of the steel plate is the area of the parallelogram.

生：求钢板的面积就上求平行四边形面积。

"We can show that u can be determined at every point inside the parallelogram OACB."

我们可以证明，u可以在平行四边形OACB内部的每一点上被定出。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。