quadrilateral quadrangle tetragonum
These are the opposite sides of the parallelogram.
这是平行四边形的对边。
—— 给力词典精选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。
—— 辞典例句A trapezoid is a quadrilateral with two parallel sides.
梯形是具有两平行边的四边形。
—— 辞典例句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。
—— 给力词典精选A kite is a quadrilateral with one line of symmetry.
风筝是个有一条对称线的四边形。
—— 给力词典精选