例句與造句

1. A glide reflection line parallel to a true reflection line already implies this situation.
2. If there are also true reflection lines in the same direction then they are evenly spaced between the glide reflection lines.
3. Glide reflection symmetry with respect to two parallel lines with the same translation implies that there is also translational symmetry in the direction perpendicular to these lines, with a translation distance which is twice the distance between glide reflection lines.
4. It's difficult to find glide reflection line in a sentence. 用glide reflection line造句挺難的