Twill weave and twill weave.
The twill weave is divided according to the diagonal pattern: left and right twill.
Left twill: from the upper left right direction tilt, use "↖ said."
Right twill: since the left right direction tilt, use "↗ said."
The twill weave is divided into single - sided and double-sided twill according to the ups and downs of the warp and weft.
Single - side twill: different points on both sides. The same two ups and downs are different.
Double-sided twill: both sides of the front and back are the same as the ups and downs, inclined to different.
The single twill is divided into warp twill and weft twill.
Warp twill: organized point book > weft count.
Weft twill: weft count > by organization points.