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汉语拼音：duì jiǎo xiàn

连接多边形任意两个不相邻顶点的直线，或者连接多面体任意两个不在同一面上的顶点的直线。

1. 多边形内联结不相邻的两个顶点的直线，以及多面体内联结不同平面上的两个顶点的直线，都叫对角线。

• Footsteps had scored a diagonal path through the snow.

  脚印在雪地上留下了一条对角线.

• Mark five points an equal distance apart along the diagonals.

  在对角线上等距地标出5点。

• Draw a diagonal line to divide the square into two triangles.

  画一条对角线,把正方形分成两个三角形.

• The two diagonals of a square cross in the centre.

  正方形两条对角线交于正方形的中心.

• This can be extended to n X n tridiagonal matrices.

  这可以推广到nXn三对角线的矩阵.

• Use the vector dot product to find the obtuse angle between two diagonals of a cube.

  用矢量点积求立方体的两条对角线所夹的钝角.

• Both methods result in tridiagonal systems of linear equations that can be solved efficiently.

  两种方法都形成了有效求解的三对角线的线性方程组.

• Th two diagonals of a square cross in the centre.

  正方形的两条对角线在中间相交.

• Draw a diagonal line to divide the square into triangles.

  画一条对角线,把正方形分成两个“三角形”.

• Each stitch covers a diagonal of one cell of the grid.

  每条缝线覆盖格子的对角线.

• The diagonals of a ( an ) isosceles [ trapezoid, trapezoid, parallelogram ] are congruent.

  等腰 梯形的对角线等长.

• Note also that the leading diagonal consists of zeros.

  并且注意,主导的对角线包括零.

• Note Percent similarity in upper triangle and percent divergence in lower triangle.

  注:对角线上表示相似指数,对角线下表示分化指数.

• She lives diagonally across the street from us.

  她住在街对面,和我们呈对角线.

• Subdivide the fringe section with a diagonal - left parting.

  以对角线 - 左边分别细分边缘区段.