These are the opposite sides of the parallelogram.
这是平行四边形的对边.
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.
A trapezoid is a quadrilateral with two parallel sides.
梯形是具有两平行边的四边形.
A new mesh auto - generation algorithm of arbitrary quadrilateral is presented.
在继承已有研究成果的基础上,发展一种任意不规则区域全自动四边形网格划分方法.
A kite is a quadrilateral with one line of symmetry.
风筝是个有一条对称线的四边形.
Why does a hive not have triangular or square cells instead?
为什么蜂房不是三角形或者四边形的巢室 呢 ?
Quadrilateral mesh generation algorithm, you can look good in my opinion!
四边形网格的生成算法, 可以看看,我认为不错!
This thesis proposes a novel burst detection algorithm, Narrowest Parallelogram Coverage.
本文提出了一种新颖的数据流上的突变检测算法, 即最窄平行四边形法.
The base of the triangle coincides with one side of the square.
这三角形的底边与这四边形的一边相重合.
After reasoning, one can conclude that these two parallelograms are similar figures.
经过推理, 可以得出这两个平行四边形是相似形.
How many four sided figures are in this diagram?
下面由黑色线构成的图形里,有多少个四边形?
For best performance, use triangles and quads or a combination of both.
为了更好的性能, 使用三边形和四边形或联合使用三边形与四边形.
The area of every triangle equals the area of the parallelogram.
每个三角形的面积等于拼成的平行四边形面积的.
We have learned the area formulas of square, rectangle and parallelogram.
正方形 、 长方形、平行四边形面积的计算公式.
By the parallelogram rule or constructing a force triangle.
由力的平行四边形法则作,也可用力的三角形来作.