Subdivide the diagonal section at the back-left side of the triangle with one diagonal-back parting.
在和对角线的-背面的三角形的背面留下的边细分对角线的区段离别的。
Fold a piece of squared paper along the diagonal into a triangle, and fold into another triangle.
把一张正方形的纸沿着对角线折成三角形，然后再对折一次。
This paper defined up-triangle equal minor diagonal matrix and up-triangle stagger minor diagonal matrix.
定义了上三角等次对角线矩阵和上三角交错次对角线矩阵；
A triangle section is positioned at the center back with the remainder of the back sectioned with a diagonal-forward parting on either side.
一个三角形区段被放置在中心向后地和与在任一边上的对角线-向前的分别一起区段的背面剩余物。
A triangle section is positioned at the center back with the remainder of the back sectioned with a diagonal-forward parting on either side.
一个三角形区段被放置在中心向后地和与在任一边上的对角线-向前的分别一起区段的背面剩余物。
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